120001232100 has 36 divisors (see below), whose sum is σ = 347203565744. Its totient is φ = 32000328480.

The previous prime is 120001232083. The next prime is 120001232177. The reversal of 120001232100 is 1232100021.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 200001754 + ... + 200002353.

Almost surely, 2^120001232100 is an apocalyptic number.

120001232100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120001232100 is an abundant number, since it is smaller than the sum of its proper divisors (227202333644).

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

120001232100 is a wasteful number, since it uses less digits than its factorization.

120001232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400004124 (or 400004117 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 120001232100 its reverse (1232100021), we get a palindrome (121233332121).

The spelling of 120001232100 in words is "one hundred twenty billion, one million, two hundred thirty-two thousand, one hundred".