120120999 has 8 divisors (see below), whose sum is σ = 160262400. Its totient is φ = 80030136.

The previous prime is 120120967. The next prime is 120121009. The reversal of 120120999 is 999021021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120120999 - 2⁵ = 120120967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6687 + ... + 16880.

It is an arithmetic number, because the mean of its divisors is an integer number (20032800).

Almost surely, 2^120120999 is an apocalyptic number.

120120999 is a deficient number, since it is larger than the sum of its proper divisors (40141401).

120120999 is a wasteful number, since it uses less digits than its factorization.

120120999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25269.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 120120999 is about 10959.9725820825. The cubic root of 120120999 is about 493.4081420623.

The spelling of 120120999 in words is "one hundred twenty million, one hundred twenty thousand, nine hundred ninety-nine".