316316321969 has 2 divisors, whose sum is σ = 316316321970. Its totient is φ = 316316321968.

The previous prime is 316316321921. The next prime is 316316321983. The reversal of 316316321969 is 969123613613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271636931344 + 44679390625 = 521188^2 + 211375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316316321969 is a prime.

It is a super-2 number, since 2×316316321969² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (316316321369) 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 as a sum of consecutive naturals, namely, 158158160984 + 158158160985.

It is an arithmetic number, because the mean of its divisors is an integer number (158158160985).

Almost surely, 2^316316321969 is an apocalyptic number.

It is an amenable number.

316316321969 is a deficient number, since it is larger than the sum of its proper divisors (1).

316316321969 is an equidigital number, since it uses as much as digits as its factorization.

316316321969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 50.

The spelling of 316316321969 in words is "three hundred sixteen billion, three hundred sixteen million, three hundred twenty-one thousand, nine hundred sixty-nine".