31310023113247 has 2 divisors, whose sum is σ = 31310023113248. Its totient is φ = 31310023113246.

The previous prime is 31310023113233. The next prime is 31310023113311. The reversal of 31310023113247 is 74231132001313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31310023113247 - 2⁷ = 31310023113119 is a prime.

It is a super-2 number, since 2×31310023113247² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31310023113217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655011556623 + 15655011556624.

It is an arithmetic number, because the mean of its divisors is an integer number (15655011556624).

Almost surely, 2^{31310023113247} is an apocalyptic number.

31310023113247 is a deficient number, since it is larger than the sum of its proper divisors (1).

31310023113247 is an equidigital number, since it uses as much as digits as its factorization.

31310023113247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 31310023113247 in words is "thirty-one trillion, three hundred ten billion, twenty-three million, one hundred thirteen thousand, two hundred forty-seven".