1117

This number is a prime.

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+ The smallest of only two square primes of order 2 that are also diagonal primes. The other is 1171. [Loungrides]

+ The smallest odd-digit center-deletable prime. [Loungrides]

+ 1117 is the 187th prime p. Note that 187, is brilliant with prime factors 11 and 17. This is the first case of a prime p that can be written by concatenating the prime factors of its order. [Loungrides]

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