313518255050401 has 2 divisors, whose sum is σ = 313518255050402. Its totient is φ = 313518255050400.

The previous prime is 313518255050323. The next prime is 313518255050447. The reversal of 313518255050401 is 104050552815313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277847259900001 + 35670995150400 = 16668751^2 + 5972520^2 .

It is a cyclic number.

It is not a de Polignac number, because 313518255050401 - 2⁹ = 313518255049889 is a prime.

It is not a weakly prime, because it can be changed into another prime (313518255050201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156759127525200 + 156759127525201.

It is an arithmetic number, because the mean of its divisors is an integer number (156759127525201).

Almost surely, 2^{313518255050401} is an apocalyptic number.

It is an amenable number.

313518255050401 is a deficient number, since it is larger than the sum of its proper divisors (1).

313518255050401 is an equidigital number, since it uses as much as digits as its factorization.

313518255050401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360000, while the sum is 43.

The spelling of 313518255050401 in words is "three hundred thirteen trillion, five hundred eighteen billion, two hundred fifty-five million, fifty thousand, four hundred one".