317031731461 has 2 divisors, whose sum is σ = 317031731462. Its totient is φ = 317031731460.

The previous prime is 317031731447. The next prime is 317031731479. The reversal of 317031731461 is 164137130713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205362142561 + 111669588900 = 453169^2 + 334170^2 .

It is a cyclic number.

It is not a de Polignac number, because 317031731461 - 2³³ = 308441796869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 317031731461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317001731461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158515865730 + 158515865731.

It is an arithmetic number, because the mean of its divisors is an integer number (158515865731).

Almost surely, 2^317031731461 is an apocalyptic number.

It is an amenable number.

317031731461 is a deficient number, since it is larger than the sum of its proper divisors (1).

317031731461 is an equidigital number, since it uses as much as digits as its factorization.

317031731461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 317031731461 in words is "three hundred seventeen billion, thirty-one million, seven hundred thirty-one thousand, four hundred sixty-one".