120311320 has 16 divisors (see below), whose sum is σ = 270700560. Its totient is φ = 48124512.

The previous prime is 120311273. The next prime is 120311351. The reversal of 120311320 is 23113021.

It is a self number, because there is not a number n which added to its sum of digits gives 120311320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503852 + ... + 1503931.

It is an arithmetic number, because the mean of its divisors is an integer number (16918785).

Almost surely, 2^120311320 is an apocalyptic number.

120311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120311320 is an abundant number, since it is smaller than the sum of its proper divisors (150389240).

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

120311320 is a wasteful number, since it uses less digits than its factorization.

120311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007794 (or 3007790 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 120311320 is about 10968.6516947162. The cubic root of 120311320 is about 493.6685916096.

Adding to 120311320 its reverse (23113021), we get a palindrome (143424341).

The spelling of 120311320 in words is "one hundred twenty million, three hundred eleven thousand, three hundred twenty".