317152321391 has 2 divisors, whose sum is σ = 317152321392. Its totient is φ = 317152321390.

The previous prime is 317152321373. The next prime is 317152321429. The reversal of 317152321391 is 193123251713.

It is an a-pointer prime, because the next prime (317152321429) can be obtained adding 317152321391 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 317152321391 - 2⁶ = 317152321327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317152327391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158576160695 + 158576160696.

It is an arithmetic number, because the mean of its divisors is an integer number (158576160696).

Almost surely, 2^317152321391 is an apocalyptic number.

317152321391 is a deficient number, since it is larger than the sum of its proper divisors (1).

317152321391 is an equidigital number, since it uses as much as digits as its factorization.

317152321391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The spelling of 317152321391 in words is "three hundred seventeen billion, one hundred fifty-two million, three hundred twenty-one thousand, three hundred ninety-one".