317358974321 has 4 divisors (see below), whose sum is σ = 318047389044. Its totient is φ = 316670559600.

The previous prime is 317358974293. The next prime is 317358974329. The reversal of 317358974321 is 123479853713.

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

It can be written as a sum of positive squares in 2 ways, for example, as 96698609296 + 220660365025 = 310964^2 + 469745^2 .

It is a cyclic number.

It is not a de Polignac number, because 317358974321 - 2¹⁰ = 317358973297 is a prime.

It is a super-2 number, since 2×317358974321² (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 (317358974329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344206670 + ... + 344207591.

It is an arithmetic number, because the mean of its divisors is an integer number (79511847261).

Almost surely, 2^317358974321 is an apocalyptic number.

It is an amenable number.

317358974321 is a deficient number, since it is larger than the sum of its proper divisors (688414723).

317358974321 is an equidigital number, since it uses as much as digits as its factorization.

317358974321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688414722.

The product of its digits is 3810240, while the sum is 53.

The spelling of 317358974321 in words is "three hundred seventeen billion, three hundred fifty-eight million, nine hundred seventy-four thousand, three hundred twenty-one".