120000491904 has 32 divisors (see below), whose sum is σ = 318751307640. Its totient is φ = 40000163840.

The previous prime is 120000491903. The next prime is 120000491909. The reversal of 120000491904 is 409194000021.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000491903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156250257 + ... + 156251024.

Almost surely, 2^120000491904 is an apocalyptic number.

It is an amenable number.

120000491904 is an abundant number, since it is smaller than the sum of its proper divisors (198750815736).

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

120000491904 is an equidigital number, since it uses as much as digits as its factorization.

120000491904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312501298 (or 312501286 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

Adding to 120000491904 its reverse (409194000021), we get a palindrome (529194491925).

The spelling of 120000491904 in words is "one hundred twenty billion, four hundred ninety-one thousand, nine hundred four".