313481721701 has 2 divisors, whose sum is σ = 313481721702. Its totient is φ = 313481721700.

The previous prime is 313481721697. The next prime is 313481721799. The reversal of 313481721701 is 107127184313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305886424900 + 7595296801 = 553070^2 + 87151^2 .

It is a cyclic number.

It is not a de Polignac number, because 313481721701 - 2² = 313481721697 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313481721001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156740860850 + 156740860851.

It is an arithmetic number, because the mean of its divisors is an integer number (156740860851).

Almost surely, 2^313481721701 is an apocalyptic number.

It is an amenable number.

313481721701 is a deficient number, since it is larger than the sum of its proper divisors (1).

313481721701 is an equidigital number, since it uses as much as digits as its factorization.

313481721701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 313481721701 in words is "three hundred thirteen billion, four hundred eighty-one million, seven hundred twenty-one thousand, seven hundred one".