317130216257 has 4 divisors (see below), whose sum is σ = 320951062320. Its totient is φ = 313309370196.

The previous prime is 317130216211. The next prime is 317130216301. The reversal of 317130216257 is 752612031713.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 317130216257 - 2¹⁴ = 317130199873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 317130216257.

It is not an unprimeable number, because it can be changed into a prime (317130219257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1910422907 + ... + 1910423072.

It is an arithmetic number, because the mean of its divisors is an integer number (80237765580).

Almost surely, 2^317130216257 is an apocalyptic number.

It is an amenable number.

317130216257 is a deficient number, since it is larger than the sum of its proper divisors (3820846063).

317130216257 is an equidigital number, since it uses as much as digits as its factorization.

317130216257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820846062.

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 317130216257 in words is "three hundred seventeen billion, one hundred thirty million, two hundred sixteen thousand, two hundred fifty-seven".