Szkandy

Simple plugin wich allows you to Translating wordpress pagination URL (from “page” to anything else). 
After activation the plugin, you can set your pagination on Permlainks page.

Pagination Translator

Simple plugin wich allows you to set your pagination name in URL.

Blogestudio

Pau Iglesias

If you want to customize pagination URLs you can see that there are no options to change the URL suffix “[..]/page/[number]/” that WordPress implements in paging context: from home page, in category or tag navigation, search results pages, etc.
This plugin allows you to define a new URL suffix to replace the usual “[..]/page/[number]/” and define custom pagination URLs.
To do this make sure that you have activated the pretty permalinks options of WordPress under menu Settings > Permalinks.
About the previous URLs, this plugin does automatically redirects from old classic URLs to the defined new ones.
Also there is another feature where you can indicate to search engines that the current page is part of a listing. This option adds the tags <link> with attributes rel=”prev” and/or rel=”next” into the head section.

Custom Pagination Permalinks

Custom listing pagination URLs instead default WordPress permalinks like "[..]/page/[number]/"

Pagination Translator vs Custom Pagination Permalinks