231104028 has 24 divisors (see below), whose sum is σ = 539586432. Its totient is φ = 76985584.

The previous prime is 231104021. The next prime is 231104033. The reversal of 231104028 is 820401132.

231104028 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 = 231103995 and 231104013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231104021) 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, 16951 + ... + 27377.

It is an arithmetic number, because the mean of its divisors is an integer number (22482768).

Almost surely, 2^231104028 is an apocalyptic number.

It is an amenable number.

231104028 is an abundant number, since it is smaller than the sum of its proper divisors (308482404).

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

231104028 is a wasteful number, since it uses less digits than its factorization.

231104028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12281 (or 12279 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 231104028 is about 15202.1060383093. The cubic root of 231104028 is about 613.6713360909.

The spelling of 231104028 in words is "two hundred thirty-one million, one hundred four thousand, twenty-eight".