131

This number is a prime.

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The smallest and possibly the only odd-digit palindromic prime that is partial sums of numbers (1+3+5+7+9...+31 = 131) whose divisors have only odd digits. Note that the primes with this property are 131, 199, 379, 519793, 113715733399, ... . [Sariyar]

Submitted: 2020-04-24 11:48:38;   Last Modified: 2020-04-25 07:54:00.
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