120011904 has 96 divisors (see below), whose sum is σ = 363589200. Its totient is φ = 37891584.

The previous prime is 120011893. The next prime is 120011917. The reversal of 120011904 is 409110021.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19147 + ... + 24629.

Almost surely, 2^120011904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120011904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181794600).

120011904 is an abundant number, since it is smaller than the sum of its proper divisors (243577296).

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

120011904 is a wasteful number, since it uses less digits than its factorization.

120011904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5522 (or 5507 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 120011904 is about 10954.9944774062. The cubic root of 120011904 is about 493.2587242093.

Adding to 120011904 its reverse (409110021), we get a palindrome (529121925).

The spelling of 120011904 in words is "one hundred twenty million, eleven thousand, nine hundred four".