13

This number is a prime.

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The smallest prime that is equidistant by a prime (3) between the sum of squares of its digits (1² + 3²) and the square of the sum of its digits (1 + 3)². [Beedassy]

Submitted: 2009-11-12 13:45:28; Last Modified: 2009-11-12 22:54:37.