How Do I Know If I Mistyped SSN on Credit App?

This morning I applied for a new credit card and got approved, but with a much larger credit limit than I anticipated. I expected to get approved, but I thought that high of a limit was unusual, but I have been building up my credit over the last year so maybe not? Additionally, Experian doesn’t say I have a new hard inquiry, likewise the other bureaus. This added to my worries because usually it’s an instant pull.

Is it possible I mistyped my SSN by a digit or two? I know my address and all other information was accurate, but I’m just second-guessing the SSN.

Let me know your thoughts and how to proceed!

TLDR; Got higher than expected credit limit on new card and no hard inquiry on Experian, so I feel I did something wrong.