231122304 has 96 divisors (see below), whose sum is σ = 760116240. Its totient is φ = 66032640.

The previous prime is 231122303. The next prime is 231122323. The reversal of 231122304 is 403221132.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231122303) 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, 6267 + ... + 22394.

Almost surely, 2^231122304 is an apocalyptic number.

231122304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231122304 is an abundant number, since it is smaller than the sum of its proper divisors (528993936).

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

231122304 is a wasteful number, since it uses less digits than its factorization.

231122304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28688 (or 28673 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 231122304 is about 15202.7071273507. The cubic root of 231122304 is about 613.6875123006.

Adding to 231122304 its reverse (403221132), we get a palindrome (634343436).

The spelling of 231122304 in words is "two hundred thirty-one million, one hundred twenty-two thousand, three hundred four".