4723

This number is a prime.

+ The smallest Fibonacci prime index that is currently an Australian postcode (Emerald, Queensland).

+ 4723 is the smallest prime that can be expressed as the sum of the same prime powers of eleven consecutive primes. I.e., 4723 = 3^2 + 5^2 + 7^2 + 11^2 + 13^2 + 17^2 + 19^2 + 23^2 + 29^2 + 31^2 + 37^2. [Opao]

+ The larger of only two 4-digit primes, each concatenated from a safe prime, 2p+1, and the corresponding Sophie Germain prime p, case p=23. The other is 2311. [Loungrides]

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

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