311063085516613 has 2 divisors, whose sum is σ = 311063085516614. Its totient is φ = 311063085516612.

The previous prime is 311063085516577. The next prime is 311063085516643. The reversal of 311063085516613 is 316615580360113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169970096158564 + 141092989358049 = 13037258^2 + 11878257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311063085516613 is a prime.

It is a super-2 number, since 2×311063085516613² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311063085516643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155531542758306 + 155531542758307.

It is an arithmetic number, because the mean of its divisors is an integer number (155531542758307).

Almost surely, 2^{311063085516613} is an apocalyptic number.

It is an amenable number.

311063085516613 is a deficient number, since it is larger than the sum of its proper divisors (1).

311063085516613 is an equidigital number, since it uses as much as digits as its factorization.

311063085516613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 311063085516613 in words is "three hundred eleven trillion, sixty-three billion, eighty-five million, five hundred sixteen thousand, six hundred thirteen".