1312310023231 has 2 divisors, whose sum is σ = 1312310023232. Its totient is φ = 1312310023230.

The previous prime is 1312310023217. The next prime is 1312310023261. The reversal of 1312310023231 is 1323200132131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312310023231 - 2⁷ = 1312310023103 is a prime.

It is a super-2 number, since 2×1312310023231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312310023261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656155011615 + 656155011616.

It is an arithmetic number, because the mean of its divisors is an integer number (656155011616).

Almost surely, 2^{1312310023231} is an apocalyptic number.

1312310023231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312310023231 is an equidigital number, since it uses as much as digits as its factorization.

1312310023231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1312310023231 its reverse (1323200132131), we get a palindrome (2635510155362).

The spelling of 1312310023231 in words is "one trillion, three hundred twelve billion, three hundred ten million, twenty-three thousand, two hundred thirty-one".