3111320231137 has 2 divisors, whose sum is σ = 3111320231138. Its totient is φ = 3111320231136.

The previous prime is 3111320231101. The next prime is 3111320231161. The reversal of 3111320231137 is 7311320231113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2922103061056 + 189217170081 = 1709416^2 + 434991^2 .

It is an emirp because it is prime and its reverse (7311320231113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111320231137 is a prime.

It is not a weakly prime, because it can be changed into another prime (3111320234137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555660115568 + 1555660115569.

It is an arithmetic number, because the mean of its divisors is an integer number (1555660115569).

Almost surely, 2^{3111320231137} is an apocalyptic number.

It is an amenable number.

3111320231137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111320231137 is an equidigital number, since it uses as much as digits as its factorization.

3111320231137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The spelling of 3111320231137 in words is "three trillion, one hundred eleven billion, three hundred twenty million, two hundred thirty-one thousand, one hundred thirty-seven".