1312010012239 has 2 divisors, whose sum is σ = 1312010012240. Its totient is φ = 1312010012238.

The previous prime is 1312010012191. The next prime is 1312010012303. The reversal of 1312010012239 is 9322100102131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312010012239 - 2⁷ = 1312010012111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312010012939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656005006119 + 656005006120.

It is an arithmetic number, because the mean of its divisors is an integer number (656005006120).

Almost surely, 2^{1312010012239} is an apocalyptic number.

1312010012239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312010012239 is an equidigital number, since it uses as much as digits as its factorization.

1312010012239 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 25.

The spelling of 1312010012239 in words is "one trillion, three hundred twelve billion, ten million, twelve thousand, two hundred thirty-nine".