317102719987 has 2 divisors, whose sum is σ = 317102719988. Its totient is φ = 317102719986.

The previous prime is 317102719943. The next prime is 317102720057. The reversal of 317102719987 is 789917201713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 317102719987 - 2¹⁵ = 317102687219 is a prime.

It is not a weakly prime, because it can be changed into another prime (317102710987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158551359993 + 158551359994.

It is an arithmetic number, because the mean of its divisors is an integer number (158551359994).

Almost surely, 2^317102719987 is an apocalyptic number.

317102719987 is a deficient number, since it is larger than the sum of its proper divisors (1).

317102719987 is an equidigital number, since it uses as much as digits as its factorization.

317102719987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1333584, while the sum is 55.

The spelling of 317102719987 in words is "three hundred seventeen billion, one hundred two million, seven hundred nineteen thousand, nine hundred eighty-seven".