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(another Prime Pages' Curiosity)
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+ The smallest prime whose conversion from seconds into hours, minutes, and seconds, gives a prime number of hours, minutes, and seconds (7331s = 2h 2m 11s). [Thoms]

+ The larger of only two right-truncatable primes formed by concatenating two double-digit right-truncatable emirps. The other is 3137. [Loungrides]

+ The largest of only three right-truncatable primes, each formed by concatenating two double-digit emirps. The other two are 3137 and 3797. Note that 7331 is the only right-truncatable prime concatenated in descending order from two double-digit emirps. [Loungrides]

(There is one curio for this number that has not yet been approved by an editor.)




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