3121

This number is a prime.

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+ The only non-titanic emirp equal to the form p^p-q^q, where p, q, are primes (case p=5, q=2). [Loungrides]

+ The only non-titanic emirp of form x^x-x+1, case x=5. Note that there are only two other primes, (x=2, x=13) that create non-titanic primes of this form. [Loungrides]

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