316333721317 has 2 divisors, whose sum is σ = 316333721318. Its totient is φ = 316333721316.

The previous prime is 316333721299. The next prime is 316333721329. The reversal of 316333721317 is 713127333613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276185985156 + 40147736161 = 525534^2 + 200369^2 .

It is a cyclic number.

It is not a de Polignac number, because 316333721317 - 2¹¹ = 316333719269 is a prime.

It is a super-2 number, since 2×316333721317² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 316333721317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316333721387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158166860658 + 158166860659.

It is an arithmetic number, because the mean of its divisors is an integer number (158166860659).

Almost surely, 2^316333721317 is an apocalyptic number.

It is an amenable number.

316333721317 is a deficient number, since it is larger than the sum of its proper divisors (1).

316333721317 is an equidigital number, since it uses as much as digits as its factorization.

316333721317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 40.

The spelling of 316333721317 in words is "three hundred sixteen billion, three hundred thirty-three million, seven hundred twenty-one thousand, three hundred seventeen".