120032312100 has 72 divisors (see below), whose sum is σ = 347426409120. Its totient is φ = 31996366080.

The previous prime is 120032312083. The next prime is 120032312111. The reversal of 120032312100 is 1213230021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120032312100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 722464 + ... + 872936.

Almost surely, 2^120032312100 is an apocalyptic number.

120032312100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120032312100 is an abundant number, since it is smaller than the sum of its proper divisors (227394097020).

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

120032312100 is a wasteful number, since it uses less digits than its factorization.

120032312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153149 (or 153142 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 120032312100 its reverse (1213230021), we get a palindrome (121245542121).

The spelling of 120032312100 in words is "one hundred twenty billion, thirty-two million, three hundred twelve thousand, one hundred".