31

This number is a prime.

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There are exactly thirty-one 8-digit strobogrammatic primes: 10069001, 10911601, 11069011, 11096011, 11869811, 11896811, 16069091, 16188191, 16811891, 16900691, 16969691, 16996691, 18611981, 18688981, 19188161, 19811861, 60088009, 60611909, 60800809, 61096019, 61669919, 61696919, 61969619, 66169199, 66896899, 66911699, 68669989, 68811889, 68969689, 69800869, 69911669.

Submitted: 2016-06-24 13:32:28;   Last Modified: 2016-06-24 13:55:00.
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