230331312 has 30 divisors (see below), whose sum is σ = 644608172. Its totient is φ = 76777056.

The previous prime is 230331289. The next prime is 230331341. The reversal of 230331312 is 213133032.

230331312 is a `hidden beast` number, since 23 + 0 + 331 + 312 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 799618 + ... + 799905.

Almost surely, 2^230331312 is an apocalyptic number.

It is an amenable number.

230331312 is an abundant number, since it is smaller than the sum of its proper divisors (414276860).

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

230331312 is a wasteful number, since it uses less digits than its factorization.

230331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599537 (or 1599528 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 230331312 is about 15176.6699904821. The cubic root of 230331312 is about 612.9866182599.

Adding to 230331312 its reverse (213133032), we get a palindrome (443464344).

The spelling of 230331312 in words is "two hundred thirty million, three hundred thirty-one thousand, three hundred twelve".