313020865616573 has 2 divisors, whose sum is σ = 313020865616574. Its totient is φ = 313020865616572.

The previous prime is 313020865616551. The next prime is 313020865616597. The reversal of 313020865616573 is 375616568020313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181469646118489 + 131551219498084 = 13471067^2 + 11469578^2 .

It is a cyclic number.

It is not a de Polignac number, because 313020865616573 - 2²⁰ = 313020864567997 is a prime.

It is a super-2 number, since 2×313020865616573² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313020865616273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156510432808286 + 156510432808287.

It is an arithmetic number, because the mean of its divisors is an integer number (156510432808287).

Almost surely, 2^{313020865616573} is an apocalyptic number.

It is an amenable number.

313020865616573 is a deficient number, since it is larger than the sum of its proper divisors (1).

313020865616573 is an equidigital number, since it uses as much as digits as its factorization.

313020865616573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 56.

The spelling of 313020865616573 in words is "three hundred thirteen trillion, twenty billion, eight hundred sixty-five million, six hundred sixteen thousand, five hundred seventy-three".