120109100 has 36 divisors (see below), whose sum is σ = 261134328. Its totient is φ = 47952000.

The previous prime is 120109079. The next prime is 120109109. The reversal of 120109100 is 1901021.

It is not an unprimeable number, because it can be changed into a prime (120109109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80360 + ... + 81840.

Almost surely, 2^120109100 is an apocalyptic number.

120109100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120109100 is an abundant number, since it is smaller than the sum of its proper divisors (141025228).

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

120109100 is a wasteful number, since it uses less digits than its factorization.

120109100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2299 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 120109100 is about 10959.4297296894. The cubic root of 120109100 is about 493.3918494423.

The spelling of 120109100 in words is "one hundred twenty million, one hundred nine thousand, one hundred".