120403320 has 32 divisors (see below), whose sum is σ = 361210320. Its totient is φ = 32107520.

The previous prime is 120403319. The next prime is 120403357. The reversal of 120403320 is 23304021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120403320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501561 + ... + 501800.

Almost surely, 2^120403320 is an apocalyptic number.

120403320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120403320 is an abundant number, since it is smaller than the sum of its proper divisors (240807000).

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

120403320 is a wasteful number, since it uses less digits than its factorization.

120403320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003375 (or 1003371 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 120403320 is about 10972.8446630762. The cubic root of 120403320 is about 493.7943928467.

Adding to 120403320 its reverse (23304021), we get a palindrome (143707341).

The spelling of 120403320 in words is "one hundred twenty million, four hundred three thousand, three hundred twenty".