31267040317 has 2 divisors, whose sum is σ = 31267040318. Its totient is φ = 31267040316.

The previous prime is 31267040303. The next prime is 31267040327. The reversal of 31267040317 is 71304076213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30912320761 + 354719556 = 175819^2 + 18834^2 .

It is a cyclic number.

It is not a de Polignac number, because 31267040317 - 2¹⁵ = 31267007549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31267040327) 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, 15633520158 + 15633520159.

It is an arithmetic number, because the mean of its divisors is an integer number (15633520159).

Almost surely, 2^31267040317 is an apocalyptic number.

It is an amenable number.

31267040317 is a deficient number, since it is larger than the sum of its proper divisors (1).

31267040317 is an equidigital number, since it uses as much as digits as its factorization.

31267040317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 31267040317 in words is "thirty-one billion, two hundred sixty-seven million, forty thousand, three hundred seventeen".