231133124 has 12 divisors (see below), whose sum is σ = 404659500. Its totient is φ = 115516128.

The previous prime is 231133109. The next prime is 231133153. The reversal of 231133124 is 421331132.

It can be written as a sum of positive squares in 2 ways, for example, as 219573124 + 11560000 = 14818^2 + 3400^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231133096 and 231133105.

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, 1139 + ... + 21530.

It is an arithmetic number, because the mean of its divisors is an integer number (33721625).

Almost surely, 2^231133124 is an apocalyptic number.

It is an amenable number.

231133124 is a deficient number, since it is larger than the sum of its proper divisors (173526376).

231133124 is a wasteful number, since it uses less digits than its factorization.

231133124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25222 (or 25220 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 231133124 is about 15203.0629808601. The cubic root of 231133124 is about 613.6970887531.

Adding to 231133124 its reverse (421331132), we get a palindrome (652464256).

The spelling of 231133124 in words is "two hundred thirty-one million, one hundred thirty-three thousand, one hundred twenty-four".