321053312 has 32 divisors (see below), whose sum is σ = 641930880. Its totient is φ = 159941376.

The previous prime is 321053261. The next prime is 321053321. The reversal of 321053312 is 213350123.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31793 + ... + 40655.

It is an arithmetic number, because the mean of its divisors is an integer number (20060340).

Almost surely, 2^321053312 is an apocalyptic number.

321053312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321053312 is a deficient number, since it is larger than the sum of its proper divisors (320877568).

321053312 is an equidigital number, since it uses as much as digits as its factorization.

321053312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9160 (or 9148 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 321053312 is about 17917.9605982377. The cubic root of 321053312 is about 684.7400309963.

The spelling of 321053312 in words is "three hundred twenty-one million, fifty-three thousand, three hundred twelve".