312231324 has 24 divisors (see below), whose sum is σ = 730613520. Its totient is φ = 103780864.

The previous prime is 312231251. The next prime is 312231331. The reversal of 312231324 is 423132213.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 312231324.

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 7 ways as a sum of consecutive naturals, for example, 32619 + ... + 41090.

It is an arithmetic number, because the mean of its divisors is an integer number (30442230).

Almost surely, 2^312231324 is an apocalyptic number.

It is an amenable number.

312231324 is an abundant number, since it is smaller than the sum of its proper divisors (418382196).

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

312231324 is a wasteful number, since it uses less digits than its factorization.

312231324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74069 (or 74067 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 312231324 is about 17670.0685906988. The cubic root of 312231324 is about 678.4098686886.

Adding to 312231324 its reverse (423132213), we get a palindrome (735363537).

The spelling of 312231324 in words is "three hundred twelve million, two hundred thirty-one thousand, three hundred twenty-four".