This number is a prime.

+ The smallest palindromic prime that contains all of the odd prime digits. [Beedassy]

+ The only palindromic prime formed from two consecutive pairs of twin primes. [Silva]

+ "Peak primes" are those of the pattern abcba, where c>b>a: e.g., 35753. "Valley primes" are mirror reflections of these. [Pyne]

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