1312023031499 has 2 divisors, whose sum is σ = 1312023031500. Its totient is φ = 1312023031498.

The previous prime is 1312023031493. The next prime is 1312023031519. The reversal of 1312023031499 is 9941303202131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312023031499 - 2²⁴ = 1312006254283 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1312023031493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656011515749 + 656011515750.

It is an arithmetic number, because the mean of its divisors is an integer number (656011515750).

Almost surely, 2^{1312023031499} is an apocalyptic number.

1312023031499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312023031499 is an equidigital number, since it uses as much as digits as its factorization.

1312023031499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 1312023031499 in words is "one trillion, three hundred twelve billion, twenty-three million, thirty-one thousand, four hundred ninety-nine".