This number is a prime.

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+ The year terminating the smallest quadruplet of successive prime years that leaps over a millennium with increasing gaps 2n (n = 1, 2, 3): 1997, 1999, 2003, 2011. [Beedassy]

+ The horizontal reflection of 2011 (5011) on a calculator is also prime. [Beedassy]

(There are 2 curios for this number that have not yet been approved by an editor.)

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