353

This number is a prime.

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353 is the smallest multi-digit palindromic prime that produces two more palindromes when its prime index, 71, is subtracted or added to it. The next such palindromic prime is 73637. Are there any more? [Gaydos]

Submitted: 2016-05-08 16:10:08; Last Modified: 2019-04-06 23:26:51.