231304000 has 112 divisors (see below), whose sum is σ = 593171280. Its totient is φ = 89241600.

The previous prime is 231303997. The next prime is 231304019. The reversal of 231304000 is 403132.

It can be written as a sum of positive squares in 8 ways, for example, as 33732864 + 197571136 = 5808^2 + 14056^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231502 + ... + 232498.

Almost surely, 2^231304000 is an apocalyptic number.

231304000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231304000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296585640).

231304000 is an abundant number, since it is smaller than the sum of its proper divisors (361867280).

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

231304000 is an equidigital number, since it uses as much as digits as its factorization.

231304000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 231304000 is about 15208.6817311692. The cubic root of 231304000 is about 613.8482862825.

Adding to 231304000 its reverse (403132), we get a palindrome (231707132).

The spelling of 231304000 in words is "two hundred thirty-one million, three hundred four thousand".