313034087447681 has 2 divisors, whose sum is σ = 313034087447682. Its totient is φ = 313034087447680.

The previous prime is 313034087447633. The next prime is 313034087447701. The reversal of 313034087447681 is 186744780430313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240814531240000 + 72219556207681 = 15518200^2 + 8498209^2 .

It is a cyclic number.

It is not a de Polignac number, because 313034087447681 - 2¹⁴ = 313034087431297 is a prime.

It is a super-2 number, since 2×313034087447681² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313034087447681.

It is not a weakly prime, because it can be changed into another prime (313034087447581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156517043723840 + 156517043723841.

It is an arithmetic number, because the mean of its divisors is an integer number (156517043723841).

Almost surely, 2^{313034087447681} is an apocalyptic number.

It is an amenable number.

313034087447681 is a deficient number, since it is larger than the sum of its proper divisors (1).

313034087447681 is an equidigital number, since it uses as much as digits as its factorization.

313034087447681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32514048, while the sum is 59.

The spelling of 313034087447681 in words is "three hundred thirteen trillion, thirty-four billion, eighty-seven million, four hundred forty-seven thousand, six hundred eighty-one".