There is nothing in the theme that would prevent numbers or numeric text from appearing in mobile view.
Is the widget a standard WordPress widget or a plugin widget (page builder widget for example)?
Is the widget area where you have placed the widget one of the widget areas of the Trusted theme or a widget area provided by a plugin?
The widget areas provide by the theme are ‘Blog Sidebar’, ‘Home Page Sidebar’, ‘Page Sidebar’, ‘Shop Sidebar’, ‘Top Bar’, ‘Footer Columns 1/2/3’ and ‘Middle Footer’.
If it is a page builder widget for example, does the widget have settings for how it is displayed on mobile?
Would you be able to let me know the URL of your site and describe to me where the text that is not displayed correctly is located?