311432444234137 has 2 divisors, whose sum is σ = 311432444234138. Its totient is φ = 311432444234136.

The previous prime is 311432444234083. The next prime is 311432444234161. The reversal of 311432444234137 is 731432444234113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203559730014096 + 107872714220041 = 14267436^2 + 10386179^2 .

It is a cyclic number.

It is not a de Polignac number, because 311432444234137 - 2³⁵ = 311398084495769 is a prime.

It is a super-2 number, since 2×311432444234137² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (311432444234237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155716222117068 + 155716222117069.

It is an arithmetic number, because the mean of its divisors is an integer number (155716222117069).

Almost surely, 2^{311432444234137} is an apocalyptic number.

It is an amenable number.

311432444234137 is a deficient number, since it is larger than the sum of its proper divisors (1).

311432444234137 is an equidigital number, since it uses as much as digits as its factorization.

311432444234137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 46.

The spelling of 311432444234137 in words is "three hundred eleven trillion, four hundred thirty-two billion, four hundred forty-four million, two hundred thirty-four thousand, one hundred thirty-seven".