diff --git a/package.json b/package.json
index 5dce73e..2ba5091 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wikipedia",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "A JavaScript wrapper for the wikipedia apis",
   "main": "dist",
   "engines": {
diff --git a/source/index.ts b/source/index.ts
index eefe466..ece1b38 100644
--- a/source/index.ts
+++ b/source/index.ts
@@ -25,7 +25,7 @@ import { getCurrentDay, getCurrentMonth, getCurrentYear, setPageId, setPageIdOrT
  * Internally calls wiki.page
  *
  */
-const wiki = async (title: string, pageOptions?: pageOptions): Promise<Page> => {
+const wiki = async (title: string|number, pageOptions?: pageOptions): Promise<Page> => {
     return wiki.page(title, pageOptions);
 }
 
@@ -39,7 +39,7 @@ const wiki = async (title: string, pageOptions?: pageOptions): Promise<Page> =>
  * @param searchOptions - The number of results and if suggestion needed {@link searchOptions | searchOptions }
  * @returns an array of {@link wikiSearchResult | wikiSearchResult }
  */
-wiki.search = async (query: string, searchOptions?: searchOptions): Promise<wikiSearchResult> => {
+wiki.search = async (query: string|number, searchOptions?: searchOptions): Promise<wikiSearchResult> => {
     try {
         const searchParams: any = {
             'list': 'search',
@@ -69,10 +69,10 @@ wiki.search = async (query: string, searchOptions?: searchOptions): Promise<wiki
  * @param pageOptions - Whether to redirect, autoSuggest or preload any fields {@link pageOptions | pageOptions }
  * @returns The intro string
  */
-wiki.page = async (title: string, pageOptions?: pageOptions): Promise<Page> => {
+wiki.page = async (title: string|number, pageOptions?: pageOptions): Promise<Page> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         let pageParams: any = {
             prop: 'info|pageprops',
@@ -112,10 +112,10 @@ wiki.page = async (title: string, pageOptions?: pageOptions): Promise<Page> => {
  * @param pageOptions - Whether to redirect in case of 302
  * @returns The intro string
  */
-wiki.intro = async (title: string, pageOptions?: pageOptions): Promise<string> => {
+wiki.intro = async (title: string|number, pageOptions?: pageOptions): Promise<string> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const result = await intro(title, pageOptions?.redirect);
         return result;
@@ -134,10 +134,10 @@ wiki.intro = async (title: string, pageOptions?: pageOptions): Promise<string> =
  * @param listOptions - {@link listOptions | listOptions }
  * @returns an array of imageResult {@link imageResult | imageResult }
  */
-wiki.images = async (title: string, listOptions?: listOptions): Promise<Array<imageResult>> => {
+wiki.images = async (title: string|number, listOptions?: listOptions): Promise<Array<imageResult>> => {
     try {
         if (listOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const result = await images(title, listOptions);
         return result;
@@ -159,7 +159,7 @@ wiki.images = async (title: string, listOptions?: listOptions): Promise<Array<im
 wiki.summary = async (title: string, pageOptions?: pageOptions): Promise<wikiSummary> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title) as string;
         }
         const result = await summary(title, pageOptions?.redirect);
         return result;
@@ -180,10 +180,10 @@ wiki.summary = async (title: string, pageOptions?: pageOptions): Promise<wikiSum
  * 
  * @beta
  */
-wiki.html = async (title: string, pageOptions?: pageOptions): Promise<string> => {
+wiki.html = async (title: string|number, pageOptions?: pageOptions): Promise<string> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const result = await html(title, pageOptions?.redirect);
         return result;
@@ -202,10 +202,10 @@ wiki.html = async (title: string, pageOptions?: pageOptions): Promise<string> =>
  * @param pageOptions - Whether to redirect in case of 302
  * @returns The plain text as string and the parent and revision ids
  */
-wiki.content = async (title: string, pageOptions?: pageOptions): Promise<string> => {
+wiki.content = async (title: string|number, pageOptions?: pageOptions): Promise<string> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const response = await content(title, pageOptions?.redirect);
         return response.result;
@@ -224,10 +224,10 @@ wiki.content = async (title: string, pageOptions?: pageOptions): Promise<string>
  * @param listOptions - {@link listOptions | listOptions }
  * @returns The categories as an array of string
  */
-wiki.categories = async (title: string, listOptions?: listOptions): Promise<Array<string>> => {
+wiki.categories = async (title: string|number, listOptions?: listOptions): Promise<Array<string>> => {
     try {
         if (listOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const response = await categories(title, listOptions);
         return response;
@@ -252,7 +252,7 @@ wiki.categories = async (title: string, listOptions?: listOptions): Promise<Arra
 wiki.related = async (title: string, pageOptions?: pageOptions): Promise<relatedResult> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title) as string;
         }
         const response = await related(title, pageOptions?.redirect);
         return response;
@@ -277,7 +277,7 @@ wiki.related = async (title: string, pageOptions?: pageOptions): Promise<related
 wiki.media = async (title: string, pageOptions?: pageOptions): Promise<wikiMediaResult> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title) as string;
         }
         const response = await media(title, pageOptions?.redirect);
         return response;
@@ -296,10 +296,10 @@ wiki.media = async (title: string, pageOptions?: pageOptions): Promise<wikiMedia
  * @param listOptions - {@link listOptions | listOptions }
  * @returns The links as an array of string
  */
-wiki.links = async (title: string, listOptions?: listOptions): Promise<Array<string>> => {
+wiki.links = async (title: string|number, listOptions?: listOptions): Promise<Array<string>> => {
     try {
         if (listOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const response = await links(title, listOptions);
         return response;
@@ -318,10 +318,10 @@ wiki.links = async (title: string, listOptions?: listOptions): Promise<Array<str
  * @param listOptions - {@link listOptions | listOptions }
  * @returns The references as an array of string
  */
-wiki.references = async (title: string, listOptions?: listOptions): Promise<Array<string>> => {
+wiki.references = async (title: string|number, listOptions?: listOptions): Promise<Array<string>> => {
     try {
         if (listOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const response = await references(title, listOptions);
         return response;
@@ -340,10 +340,10 @@ wiki.references = async (title: string, listOptions?: listOptions): Promise<Arra
  * @param pageOptions - Whether to redirect in case of 302
  * @returns The coordinates as {@link coordinatesResult | coordinatesResult}
  */
-wiki.coordinates = async (title: string, pageOptions?: pageOptions): Promise<coordinatesResult | null> => {
+wiki.coordinates = async (title: string|number, pageOptions?: pageOptions): Promise<coordinatesResult | null> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const response = await coordinates(title, pageOptions?.redirect);
         return response;
@@ -362,10 +362,10 @@ wiki.coordinates = async (title: string, pageOptions?: pageOptions): Promise<coo
  * @param listOptions - {@link listOptions | listOptions }
  * @returns The links as an array of {@link langLinksResult | langLinksResult }
  */
-wiki.langLinks = async (title: string, listOptions?: listOptions): Promise<Array<langLinksResult>> => {
+wiki.langLinks = async (title: string|number, listOptions?: listOptions): Promise<Array<langLinksResult>> => {
     try {
         if (listOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const response = await langLinks(title, listOptions);
         return response;
@@ -384,10 +384,10 @@ wiki.langLinks = async (title: string, listOptions?: listOptions): Promise<Array
  * @param pageOptions - Whether to redirect in case of 302
  * @returns The info as JSON object
  */
-wiki.infobox = async (title: string, pageOptions?: pageOptions): Promise<any> => {
+wiki.infobox = async (title: string|number, pageOptions?: pageOptions): Promise<any> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const response = await infobox(title, pageOptions?.redirect);
         return response;
@@ -406,10 +406,10 @@ wiki.infobox = async (title: string, pageOptions?: pageOptions): Promise<any> =>
  * @param pageOptions - Whether to redirect in case of 302
  * @returns The tables as arrays of JSON objects
  */
-wiki.tables = async (title: string, pageOptions?: pageOptions): Promise<Array<any>> => {
+wiki.tables = async (title: string|number, pageOptions?: pageOptions): Promise<Array<any>> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title as string);
         }
         const response = await tables(title, pageOptions?.redirect);
         return response;
@@ -581,7 +581,7 @@ wiki.random = async (format?: randomFormats): Promise<wikiSummary | title | rela
 wiki.mobileHtml = async (title: string, pageOptions?: pageOptions): Promise<notFound | string> => {
     try {
         if (pageOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title) as string;
         }
         const result = await mobileHtml(title, pageOptions?.redirect);
         return result;
@@ -600,7 +600,7 @@ wiki.mobileHtml = async (title: string, pageOptions?: pageOptions): Promise<notF
  wiki.pdf = async (title: string, pdfOptions?: pdfOptions): Promise<any> => {
     try {
         if (pdfOptions?.autoSuggest) {
-            title = await setTitleForPage(title);
+            title = await setTitleForPage(title) as string;
         }
         const result = await pdf(title, pdfOptions);
         return result;
diff --git a/source/page.ts b/source/page.ts
index 0ff254c..69e65be 100644
--- a/source/page.ts
+++ b/source/page.ts
@@ -430,7 +430,7 @@ export class Page {
  * @param listOptions - {@link listOptions | listOptions }
  * @returns an array of imageResult {@link imageResult | imageResult }
  */
-export const images = async (title: string, listOptions?: listOptions): Promise<Array<imageResult>> => {
+export const images = async (title: string|number, listOptions?: listOptions): Promise<Array<imageResult>> => {
     try {
         let imageOptions: any = {
             generator: 'images',
@@ -463,7 +463,7 @@ export const images = async (title: string, listOptions?: listOptions): Promise<
  * @param redirect - Whether to redirect in case of 302
  * @returns The intro string
  */
-export const intro = async (title: string, redirect = true): Promise<string> => {
+export const intro = async (title: string|number, redirect = true): Promise<string> => {
     try {
         let introOptions: any = {
             prop: 'extracts',
@@ -491,7 +491,7 @@ export const intro = async (title: string, redirect = true): Promise<string> =>
  * 
  * @beta
  */
-export const html = async (title: string, redirect = true): Promise<string> => {
+export const html = async (title: string|number, redirect = true): Promise<string> => {
     try {
         let htmlOptions: any = {
             'prop': 'revisions',
@@ -518,7 +518,7 @@ export const html = async (title: string, redirect = true): Promise<string> => {
  * @param redirect - Whether to redirect in case of 302
  * @returns The plain text as string and the parent and revision ids
  */
-export const content = async (title: string, redirect = true): Promise<any> => {
+export const content = async (title: string|number, redirect = true): Promise<any> => {
     try {
         let contentOptions: any = {
             'prop': 'extracts|revisions',
@@ -552,7 +552,7 @@ export const content = async (title: string, redirect = true): Promise<any> => {
  * @param listOptions - {@link listOptions | listOptions }
  * @returns The categories as an array of string
  */
-export const categories = async (title: string, listOptions?: listOptions): Promise<Array<string>> => {
+export const categories = async (title: string|number, listOptions?: listOptions): Promise<Array<string>> => {
     try {
         let categoryOptions: any = {
             prop: 'categories',
@@ -577,7 +577,7 @@ export const categories = async (title: string, listOptions?: listOptions): Prom
  * @param listOptions - {@link listOptions | listOptions }
  * @returns The links as an array of string
  */
-export const links = async (title: string, listOptions?: listOptions): Promise<Array<string>> => {
+export const links = async (title: string|number, listOptions?: listOptions): Promise<Array<string>> => {
     try {
         let linksOptions: any = {
             prop: 'links',
@@ -604,7 +604,7 @@ export const links = async (title: string, listOptions?: listOptions): Promise<A
  * @param listOptions - {@link listOptions | listOptions }
  * @returns The references as an array of string
  */
-export const references = async (title: string, listOptions?: listOptions): Promise<Array<string>> => {
+export const references = async (title: string|number, listOptions?: listOptions): Promise<Array<string>> => {
     try {
         let extLinksOptions: any = {
             prop: 'extlinks',
@@ -630,7 +630,7 @@ export const references = async (title: string, listOptions?: listOptions): Prom
  * @param redirect - Whether to redirect in case of 302
  * @returns The coordinates as {@link coordinatesResult | coordinatesResult}
  */
-export const coordinates = async (title: string, redirect = true): Promise<coordinatesResult> => {
+export const coordinates = async (title: string|number, redirect = true): Promise<coordinatesResult> => {
     try {
         let coordinatesOptions: any = {
             prop: 'coordinates',
@@ -655,7 +655,7 @@ export const coordinates = async (title: string, redirect = true): Promise<coord
  * @param listOptions - {@link listOptions | listOptions }
  * @returns The links as an array of {@link langLinksResult | langLinksResult }
  */
-export const langLinks = async (title: string, listOptions?: listOptions): Promise<Array<langLinksResult>> => {
+export const langLinks = async (title: string|number, listOptions?: listOptions): Promise<Array<langLinksResult>> => {
     try {
         let languageOptions: any = {
             prop: 'langlinks',
@@ -688,7 +688,7 @@ export const langLinks = async (title: string, listOptions?: listOptions): Promi
  * @param redirect - Whether to redirect in case of 302
  * @returns The info as JSON object
  */
-export const infobox = async (title: string, redirect = true): Promise<any> => {
+export const infobox = async (title: string|number, redirect = true): Promise<any> => {
     try {
         const infoboxOptions: any = {
             prop: 'revisions',
@@ -713,7 +713,7 @@ export const infobox = async (title: string, redirect = true): Promise<any> => {
  * @param redirect - Whether to redirect in case of 302
  * @returns The tables as arrays of JSON objects
  */
-export const tables = async (title: string, redirect = true): Promise<Array<any>> => {
+export const tables = async (title: string|number, redirect = true): Promise<Array<any>> => {
     try {
         const tableOptions: any = {
             prop: 'revisions',
@@ -738,7 +738,7 @@ export const tables = async (title: string, redirect = true): Promise<Array<any>
  * @returns The rawInfo of the page 
  * 
  */
-export const rawInfo = async (title: string, options: any, redirect = true): Promise<any> => {
+export const rawInfo = async (title: string|number, options: any, redirect = true): Promise<any> => {
     try {
         options = setPageIdOrTitleParam(options, title);
         const response = await request(options, redirect);
@@ -762,7 +762,7 @@ export const rawInfo = async (title: string, options: any, redirect = true): Pro
  * @remarks
  * Called in page object and also through wiki default object
  *
- * @param title - The title or page Id of the page
+ * @param title - The title of the page
  * @param redirect - Whether to redirect in case of 302
  * @returns The summary of the page as {@link wikiSummary | wikiSummary}
  */
@@ -783,7 +783,7 @@ export const summary = async (title: string, redirect = true): Promise<wikiSumma
  * @remarks
  * Called in page object and also through index
  *
- * @param title - The title or page Id of the page
+ * @param title - The title of the page
  * @param redirect - Whether to redirect in case of 302
  * @returns The related pages and summary as an array of {@link wikiSummary | wikiSummary}
  * 
@@ -806,7 +806,7 @@ export const related = async (title: string, redirect = true): Promise<relatedRe
  * @remarks
  * Called in page object and also through index
  *
- * @param title - The title or page Id of the page
+ * @param title - The title of the page
  * @param redirect - Whether to redirect in case of 302
  * @returns The related pages and summary as an array of {@link wikiMediaResult | wikiMediaResult}
  * 
diff --git a/source/utils.ts b/source/utils.ts
index 33966b3..54c2faa 100644
--- a/source/utils.ts
+++ b/source/utils.ts
@@ -4,7 +4,7 @@ import { MSGS } from "./messages";
 
 //check if input is string
 export function isString(title: any){
-    return isNaN(title);
+    return typeof title === 'string' || title instanceof String;
 }
 
 //set title for page in case autoSuggest is true
@@ -20,7 +20,7 @@ export async function setTitleForPage(title: string) {
 }
 
 //Set page id or title param for legacy api queries
-export function setPageIdOrTitleParam(params: any, title: string) {
+export function setPageIdOrTitleParam(params: any, title: string|number) {
     if (isString(title)) {
         params.titles = title
     } else {
@@ -59,4 +59,4 @@ export function getCurrentDay(): number {
     const date = new Date();
     const day = date.getDate();
     return day;
-}
\ No newline at end of file
+}
diff --git a/test/utils.test.ts b/test/utils.test.ts
index d70ee00..6b861ff 100644
--- a/test/utils.test.ts
+++ b/test/utils.test.ts
@@ -41,10 +41,16 @@ test('Sets title param for string titles', () => {
     expect(result.titles).toBe("Test");
 });
 
-test('Sets page ids params for number titles', () => {
+test('Handle number strings as titles', () => {
     const params = {}
     const result = setPageIdOrTitleParam(params, "112")
-    expect(result.pageids).toBe("112");
+    expect(result.titles).toBe("112");
+});
+
+test('Handle numbers as pageids', () => {
+    const params = {}
+    const result = setPageIdOrTitleParam(params, 112)
+    expect(result.pageids).toBe(112);
 });
 
 test('Sets pageId from params if present', () => {