317597745131 has 4 divisors (see below), whose sum is σ = 321424224072. Its totient is φ = 313771266192.

The previous prime is 317597745103. The next prime is 317597745133. The reversal of 317597745131 is 131547795713.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317597745131 is a prime.

It is a super-2 number, since 2×317597745131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317597745133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913239346 + ... + 1913239511.

It is an arithmetic number, because the mean of its divisors is an integer number (80356056018).

Almost surely, 2^317597745131 is an apocalyptic number.

317597745131 is a deficient number, since it is larger than the sum of its proper divisors (3826478941).

317597745131 is an equidigital number, since it uses as much as digits as its factorization.

317597745131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826478940.

The product of its digits is 2778300, while the sum is 53.

The spelling of 317597745131 in words is "three hundred seventeen billion, five hundred ninety-seven million, seven hundred forty-five thousand, one hundred thirty-one".