231133431244 has 12 divisors (see below), whose sum is σ = 409603549600. Its totient is φ = 114103845648.

The previous prime is 231133431233. The next prime is 231133431257. The reversal of 231133431244 is 442134331132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365717139 + ... + 365717770.

Almost surely, 2^231133431244 is an apocalyptic number.

It is an amenable number.

231133431244 is a deficient number, since it is larger than the sum of its proper divisors (178470118356).

231133431244 is a wasteful number, since it uses less digits than its factorization.

231133431244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731434992 (or 731434990 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

Adding to 231133431244 its reverse (442134331132), we get a palindrome (673267762376).

The spelling of 231133431244 in words is "two hundred thirty-one billion, one hundred thirty-three million, four hundred thirty-one thousand, two hundred forty-four".