320320120 has 64 divisors (see below), whose sum is σ = 765352800. Its totient is φ = 120238080.

The previous prime is 320320081. The next prime is 320320123. The reversal of 320320120 is 21023023.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 320320120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320320123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420540 + ... + 421300.

Almost surely, 2^320320120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320320120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382676400).

320320120 is an abundant number, since it is smaller than the sum of its proper divisors (445032680).

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

320320120 is a wasteful number, since it uses less digits than its factorization.

320320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 320320120 is about 17897.4892093835. The cubic root of 320320120 is about 684.2183849487.

Adding to 320320120 its reverse (21023023), we get a palindrome (341343143).

The spelling of 320320120 in words is "three hundred twenty million, three hundred twenty thousand, one hundred twenty".