317023664890157 has 2 divisors, whose sum is σ = 317023664890158. Its totient is φ = 317023664890156.

The previous prime is 317023664890111. The next prime is 317023664890211. The reversal of 317023664890157 is 751098466320713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258182584299721 + 58841080590436 = 16068061^2 + 7670794^2 .

It is a cyclic number.

It is not a de Polignac number, because 317023664890157 - 2²² = 317023660695853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 317023664890157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317023664893157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158511832445078 + 158511832445079.

It is an arithmetic number, because the mean of its divisors is an integer number (158511832445079).

It is a 1-persistent number, because it is pandigital, but 2⋅317023664890157 = 634047329780314 is not.

Almost surely, 2^{317023664890157} is an apocalyptic number.

It is an amenable number.

317023664890157 is a deficient number, since it is larger than the sum of its proper divisors (1).

317023664890157 is an equidigital number, since it uses as much as digits as its factorization.

317023664890157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45722880, while the sum is 62.

The spelling of 317023664890157 in words is "three hundred seventeen trillion, twenty-three billion, six hundred sixty-four million, eight hundred ninety thousand, one hundred fifty-seven".