311231313017 has 2 divisors, whose sum is σ = 311231313018. Its totient is φ = 311231313016.

The previous prime is 311231312969. The next prime is 311231313067. The reversal of 311231313017 is 710313132113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295749981241 + 15481331776 = 543829^2 + 124424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311231313017 is a prime.

It is not a weakly prime, because it can be changed into another prime (311231313067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155615656508 + 155615656509.

It is an arithmetic number, because the mean of its divisors is an integer number (155615656509).

Almost surely, 2^311231313017 is an apocalyptic number.

It is an amenable number.

311231313017 is a deficient number, since it is larger than the sum of its proper divisors (1).

311231313017 is an equidigital number, since it uses as much as digits as its factorization.

311231313017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The spelling of 311231313017 in words is "three hundred eleven billion, two hundred thirty-one million, three hundred thirteen thousand, seventeen".