120120920 has 64 divisors (see below), whose sum is σ = 277089120. Its totient is φ = 46854144.

The previous prime is 120120919. The next prime is 120120937. The reversal of 120120920 is 29021021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321854 + ... + 322226.

Almost surely, 2^120120920 is an apocalyptic number.

120120920 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 120120920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138544560).

120120920 is an abundant number, since it is smaller than the sum of its proper divisors (156968200).

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

120120920 is a wasteful number, since it uses less digits than its factorization.

120120920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 120120920 is about 10959.9689780583. The cubic root of 120120920 is about 493.4080338956.

Adding to 120120920 its reverse (29021021), we get a palindrome (149141941).

The spelling of 120120920 in words is "one hundred twenty million, one hundred twenty thousand, nine hundred twenty".