1000000007

This number is a prime.

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This prime and its reversal are the only pair of extremely naughty emirps in which number of zeros is equal to the sum of the end digits. (An extremely naughty prime has all digits zero, except for the end digits.) [Loungrides]

Submitted: 2016-08-30 15:55:15; Last Modified: 2020-07-10 23:26:32.