231216124 has 12 divisors (see below), whose sum is σ = 413237664. Its totient is φ = 113148224.

The previous prime is 231216113. The next prime is 231216127. The reversal of 231216124 is 421612132.

231216124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231216095 and 231216104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231216127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614749 + ... + 615124.

It is an arithmetic number, because the mean of its divisors is an integer number (34436472).

Almost surely, 2^231216124 is an apocalyptic number.

It is an amenable number.

231216124 is a deficient number, since it is larger than the sum of its proper divisors (182021540).

231216124 is a wasteful number, since it uses less digits than its factorization.

231216124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229924 (or 1229922 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 231216124 is about 15205.7924489321. The cubic root of 231216124 is about 613.7705395875.

Adding to 231216124 its reverse (421612132), we get a palindrome (652828256).

The spelling of 231216124 in words is "two hundred thirty-one million, two hundred sixteen thousand, one hundred twenty-four".