What palindromic prime number of n digits reads the same upside down or when viewed in a mirror?

Some examples for n=2 or 3:
11, 101, 181.

How far can you go?

Rem: Only digits 0,l and 8 qualify.

(In reply to A quick note and some Links (spoilers) by Jer)

FYI-these lists inspired my puzzle.

Posted by Ady TZIDON on 2012-05-04 11:56:04