123231224 has 32 divisors (see below), whose sum is σ = 238414800. Its totient is φ = 59685120.

The previous prime is 123231223. The next prime is 123231233. The reversal of 123231224 is 422132321.

It is a junction number, because it is equal to n+sod(n) for n = 123231196 and 123231205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30812 + ... + 34580.

Almost surely, 2^123231224 is an apocalyptic number.

It is an amenable number.

123231224 is a deficient number, since it is larger than the sum of its proper divisors (115183576).

123231224 is a wasteful number, since it uses less digits than its factorization.

123231224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903 (or 3899 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 123231224 is about 11100.9559948682. The cubic root of 123231224 is about 497.6304199205.

Adding to 123231224 its reverse (422132321), we get a palindrome (545363545).

The spelling of 123231224 in words is "one hundred twenty-three million, two hundred thirty-one thousand, two hundred twenty-four".