231393951392 has 48 divisors (see below), whose sum is σ = 470949633000. Its totient is φ = 111839477760.

The previous prime is 231393951389. The next prime is 231393951413. The reversal of 231393951392 is 293159393132.

231393951392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 84916291216 + 146477660176 = 291404^2 + 382724^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231393951392.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666017 + ... + 952032.

Almost surely, 2^231393951392 is an apocalyptic number.

It is an amenable number.

231393951392 is an abundant number, since it is smaller than the sum of its proper divisors (239555681608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231393951392 is a wasteful number, since it uses less digits than its factorization.

231393951392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618209 (or 1618201 counting only the distinct ones).

The product of its digits is 1180980, while the sum is 50.

The spelling of 231393951392 in words is "two hundred thirty-one billion, three hundred ninety-three million, nine hundred fifty-one thousand, three hundred ninety-two".