120031211100 has 36 divisors (see below), whose sum is σ = 347290304984. Its totient is φ = 32008322880.

The previous prime is 120031211087. The next prime is 120031211129. The reversal of 120031211100 is 1112130021.

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

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 200051719 + ... + 200052318.

Almost surely, 2^120031211100 is an apocalyptic number.

120031211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120031211100 is an abundant number, since it is smaller than the sum of its proper divisors (227259093884).

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

120031211100 is a wasteful number, since it uses less digits than its factorization.

120031211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400104054 (or 400104047 counting only the distinct ones).

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

Adding to 120031211100 its reverse (1112130021), we get a palindrome (121143341121).

The spelling of 120031211100 in words is "one hundred twenty billion, thirty-one million, two hundred eleven thousand, one hundred".