320102120 has 128 divisors (see below), whose sum is σ = 825552000. Its totient is φ = 110730240.

The previous prime is 320102089. The next prime is 320102131. The reversal of 320102120 is 21201023.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1768430 + ... + 1768610.

It is an arithmetic number, because the mean of its divisors is an integer number (6449625).

Almost surely, 2^320102120 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 320102120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412776000).

320102120 is an abundant number, since it is smaller than the sum of its proper divisors (505449880).

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

320102120 is a wasteful number, since it uses less digits than its factorization.

320102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 320102120 is about 17891.3979330851. The cubic root of 320102120 is about 684.0631304088.

Adding to 320102120 its reverse (21201023), we get a palindrome (341303143).

The spelling of 320102120 in words is "three hundred twenty million, one hundred two thousand, one hundred twenty".