120331320 has 64 divisors (see below), whose sum is σ = 362880000. Its totient is φ = 31920768.

The previous prime is 120331303. The next prime is 120331339. The reversal of 120331320 is 23133021.

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 120331320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21361 + ... + 26399.

It is an arithmetic number, because the mean of its divisors is an integer number (5670000).

Almost surely, 2^120331320 is an apocalyptic number.

120331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120331320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181440000).

120331320 is an abundant number, since it is smaller than the sum of its proper divisors (242548680).

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

120331320 is a wasteful number, since it uses less digits than its factorization.

120331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252 (or 5248 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 120331320 is about 10969.5633459131. The cubic root of 120331320 is about 493.6959451586.

Adding to 120331320 its reverse (23133021), we get a palindrome (143464341).

It can be divided in two parts, 1203 and 31320, that added together give a palindrome (32523).

The spelling of 120331320 in words is "one hundred twenty million, three hundred thirty-one thousand, three hundred twenty".