231023604 has 48 divisors (see below), whose sum is σ = 616896000. Its totient is φ = 65917536.

The previous prime is 231023587. The next prime is 231023621. The reversal of 231023604 is 406320132.

It is a happy number.

231023604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231023587) and next prime (231023621).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84247 + ... + 86945.

It is an arithmetic number, because the mean of its divisors is an integer number (12852000).

Almost surely, 2^231023604 is an apocalyptic number.

It is an amenable number.

231023604 is an abundant number, since it is smaller than the sum of its proper divisors (385872396).

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

231023604 is a wasteful number, since it uses less digits than its factorization.

231023604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732 (or 3730 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231023604 is about 15199.4606483257. The cubic root of 231023604 is about 613.6001421353.

Adding to 231023604 its reverse (406320132), we get a palindrome (637343736).

The spelling of 231023604 in words is "two hundred thirty-one million, twenty-three thousand, six hundred four".