323231312 has 20 divisors (see below), whose sum is σ = 638078580. Its totient is φ = 158565888.

The previous prime is 323231291. The next prime is 323231329. The reversal of 323231312 is 213132323.

323231312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 134003776 + 189227536 = 11576^2 + 13756^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189737 + ... + 191432.

It is an arithmetic number, because the mean of its divisors is an integer number (31903929).

Almost surely, 2^323231312 is an apocalyptic number.

It is an amenable number.

323231312 is a deficient number, since it is larger than the sum of its proper divisors (314847268).

323231312 is a wasteful number, since it uses less digits than its factorization.

323231312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381230 (or 381224 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 323231312 is about 17978.6348758742. The cubic root of 323231312 is about 686.2849499178.

Adding to 323231312 its reverse (213132323), we get a palindrome (536363635).

The spelling of 323231312 in words is "three hundred twenty-three million, two hundred thirty-one thousand, three hundred twelve".