787
This number is a prime.
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The first palindromic prime sum of the first (palindromic) n "happy primes" {7,13,19,23,31,79,97,103,109,139,167}, (case n=11). [Worrom]
Submitted: 2022-02-06 19:19:33; Last Modified: 2022-02-06 22:59:59.
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