311440344240269 has 2 divisors, whose sum is σ = 311440344240270. Its totient is φ = 311440344240268.

The previous prime is 311440344240257. The next prime is 311440344240313. The reversal of 311440344240269 is 962042443044113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246356191364644 + 65084152875625 = 15695738^2 + 8067475^2 .

It is a cyclic number.

It is not a de Polignac number, because 311440344240269 - 2³⁶ = 311371624763533 is a prime.

It is a super-2 number, since 2×311440344240269² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311440344210269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155720172120134 + 155720172120135.

It is an arithmetic number, because the mean of its divisors is an integer number (155720172120135).

Almost surely, 2^{311440344240269} is an apocalyptic number.

It is an amenable number.

311440344240269 is a deficient number, since it is larger than the sum of its proper divisors (1).

311440344240269 is an equidigital number, since it uses as much as digits as its factorization.

311440344240269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 47.

The spelling of 311440344240269 in words is "three hundred eleven trillion, four hundred forty billion, three hundred forty-four million, two hundred forty thousand, two hundred sixty-nine".