231304304 has 60 divisors (see below), whose sum is σ = 568733688. Its totient is φ = 90115200.

The previous prime is 231304303. The next prime is 231304313. The reversal of 231304304 is 403403132.

231304304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231304303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4787 + ... + 22034.

Almost surely, 2^231304304 is an apocalyptic number.

It is an amenable number.

231304304 is an abundant number, since it is smaller than the sum of its proper divisors (337429384).

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

231304304 is a wasteful number, since it uses less digits than its factorization.

231304304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26854 (or 26841 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 231304304 is about 15208.6917254575. The cubic root of 231304304 is about 613.8485552068.

Adding to 231304304 its reverse (403403132), we get a palindrome (634707436).

The spelling of 231304304 in words is "two hundred thirty-one million, three hundred four thousand, three hundred four".