320120332 has 18 divisors (see below), whose sum is σ = 651673932. Its totient is φ = 137194344.

The previous prime is 320120329. The next prime is 320120347. The reversal of 320120332 is 233021023.

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 5 ways as a sum of consecutive naturals, for example, 816438 + ... + 816829.

Almost surely, 2^320120332 is an apocalyptic number.

It is an amenable number.

320120332 is an abundant number, since it is smaller than the sum of its proper divisors (331553600).

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

320120332 is a wasteful number, since it uses less digits than its factorization.

320120332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633285 (or 1633276 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 320120332 is about 17891.9068855167. The cubic root of 320120332 is about 684.0761032704.

Adding to 320120332 its reverse (233021023), we get a palindrome (553141355).

The spelling of 320120332 in words is "three hundred twenty million, one hundred twenty thousand, three hundred thirty-two".