231204 has 12 divisors (see below), whose sum is σ = 539504. Its totient is φ = 77064.

The previous prime is 231197. The next prime is 231223. The reversal of 231204 is 402132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 19267 = 231204 / (2 + 3 + 1 + 2 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 231204.

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, 9622 + ... + 9645.

2²³¹²⁰⁴ is an apocalyptic number.

It is an amenable number.

231204 is an abundant number, since it is smaller than the sum of its proper divisors (308300).

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

231204 is a wasteful number, since it uses less digits than its factorization.

231204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19274 (or 19272 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 231204 is about 480.8367706405. The cubic root of 231204 is about 61.3759811552.

Adding to 231204 its reverse (402132), we get a palindrome (633336).

It can be divided in two parts, 231 and 204, that added together give a triangular number (435 = T₂₉).

The spelling of 231204 in words is "two hundred thirty-one thousand, two hundred four".