313076476021 has 2 divisors, whose sum is σ = 313076476022. Its totient is φ = 313076476020.

The previous prime is 313076476003. The next prime is 313076476057. The reversal of 313076476021 is 120674670313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263240824900 + 49835651121 = 513070^2 + 223239^2 .

It is an emirp because it is prime and its reverse (120674670313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313076476021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313076476121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156538238010 + 156538238011.

It is an arithmetic number, because the mean of its divisors is an integer number (156538238011).

Almost surely, 2^313076476021 is an apocalyptic number.

It is an amenable number.

313076476021 is a deficient number, since it is larger than the sum of its proper divisors (1).

313076476021 is an equidigital number, since it uses as much as digits as its factorization.

313076476021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 313076476021 in words is "three hundred thirteen billion, seventy-six million, four hundred seventy-six thousand, twenty-one".