1231

This number is a prime.

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The smallest prime (emirp) of form x+R(x) where x is a prime and R(x) its reversal, in three ways, i.e., 1231 = 269+962 = 467+764 = 863+368. [Loungrides]

Submitted: 2014-09-23 12:11:28;   Last Modified: 2019-01-09 11:22:29.
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