31313340017 has 2 divisors, whose sum is σ = 31313340018. Its totient is φ = 31313340016.

The previous prime is 31313340011. The next prime is 31313340049. The reversal of 31313340017 is 71004331313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31184381281 + 128958736 = 176591^2 + 11356^2 .

It is a cyclic number.

It is not a de Polignac number, because 31313340017 - 2¹⁰ = 31313338993 is a prime.

It is not a weakly prime, because it can be changed into another prime (31313340011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656670008 + 15656670009.

It is an arithmetic number, because the mean of its divisors is an integer number (15656670009).

Almost surely, 2^31313340017 is an apocalyptic number.

It is an amenable number.

31313340017 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313340017 is an equidigital number, since it uses as much as digits as its factorization.

31313340017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The spelling of 31313340017 in words is "thirty-one billion, three hundred thirteen million, three hundred forty thousand, seventeen".