811

+ The smallest prime number that is a sum of primes beginning and ending with the digit seven (811 = 7 + 7 + 797). [Capelle]

+ The largest minimal prime in base nine. [Rupinski]

+ The smallest prime concatenated in order from two successive strobogrammatic numbers. [Loungrides]

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

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