1012831256413 has 2 divisors, whose sum is σ = 1012831256414. Its totient is φ = 1012831256412.

The previous prime is 1012831256399. The next prime is 1012831256467. The reversal of 1012831256413 is 3146521382101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608083361209 + 404747895204 = 779797^2 + 636198^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012831256413 - 2⁹ = 1012831255901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012831256813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506415628206 + 506415628207.

It is an arithmetic number, because the mean of its divisors is an integer number (506415628207).

Almost surely, 2^{1012831256413} is an apocalyptic number.

It is an amenable number.

1012831256413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012831256413 is an equidigital number, since it uses as much as digits as its factorization.

1012831256413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 1012831256413 in words is "one trillion, twelve billion, eight hundred thirty-one million, two hundred fifty-six thousand, four hundred thirteen".