231013020393 has 12 divisors (see below), whose sum is σ = 333691874100. Its totient is φ = 154005726336.

The previous prime is 231013020319. The next prime is 231013020397. The reversal of 231013020393 is 393020310132.

It can be written as a sum of positive squares in 2 ways, for example, as 160739251929 + 70273768464 = 400923^2 + 265092^2 .

It is not a de Polignac number, because 231013020393 - 2¹⁷ = 231012889321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231013020397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316933 + ... + 749981.

It is an arithmetic number, because the mean of its divisors is an integer number (27807656175).

Almost surely, 2^231013020393 is an apocalyptic number.

It is an amenable number.

231013020393 is a deficient number, since it is larger than the sum of its proper divisors (102678853707).

231013020393 is a wasteful number, since it uses less digits than its factorization.

231013020393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492328 (or 492325 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The spelling of 231013020393 in words is "two hundred thirty-one billion, thirteen million, twenty thousand, three hundred ninety-three".