320052321 has 12 divisors (see below), whose sum is σ = 486629520. Its totient is φ = 202138200.

The previous prime is 320052287. The next prime is 320052347. The reversal of 320052321 is 123250023.

It is not a de Polignac number, because 320052321 - 2¹¹ = 320050273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320052294 and 320052303.

It is not an unprimeable number, because it can be changed into a prime (320052121) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 935655 + ... + 935996.

It is an arithmetic number, because the mean of its divisors is an integer number (40552460).

Almost surely, 2^320052321 is an apocalyptic number.

It is an amenable number.

320052321 is a deficient number, since it is larger than the sum of its proper divisors (166577199).

320052321 is a wasteful number, since it uses less digits than its factorization.

320052321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871676 (or 1871673 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 320052321 is about 17890.0061766339. The cubic root of 320052321 is about 684.0276548273.

The spelling of 320052321 in words is "three hundred twenty million, fifty-two thousand, three hundred twenty-one".