313041656591 has 2 divisors, whose sum is σ = 313041656592. Its totient is φ = 313041656590.

The previous prime is 313041656569. The next prime is 313041656621. The reversal of 313041656591 is 195656140313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313041656591 - 2³⁸ = 38163749647 is a prime.

It is a super-2 number, since 2×313041656591² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313041656531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156520828295 + 156520828296.

It is an arithmetic number, because the mean of its divisors is an integer number (156520828296).

Almost surely, 2^313041656591 is an apocalyptic number.

313041656591 is a deficient number, since it is larger than the sum of its proper divisors (1).

313041656591 is an equidigital number, since it uses as much as digits as its factorization.

313041656591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 313041656591 in words is "three hundred thirteen billion, forty-one million, six hundred fifty-six thousand, five hundred ninety-one".