231256924693 has 2 divisors, whose sum is σ = 231256924694. Its totient is φ = 231256924692.

The previous prime is 231256924667. The next prime is 231256924739. The reversal of 231256924693 is 396429652132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142037026884 + 89219897809 = 376878^2 + 298697^2 .

It is a cyclic number.

It is not a de Polignac number, because 231256924693 - 2³³ = 222666990101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231256924693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231256924193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115628462346 + 115628462347.

It is an arithmetic number, because the mean of its divisors is an integer number (115628462347).

Almost surely, 2^231256924693 is an apocalyptic number.

It is an amenable number.

231256924693 is a deficient number, since it is larger than the sum of its proper divisors (1).

231256924693 is an equidigital number, since it uses as much as digits as its factorization.

231256924693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 52.

The spelling of 231256924693 in words is "two hundred thirty-one billion, two hundred fifty-six million, nine hundred twenty-four thousand, six hundred ninety-three".