12120031110 has 32 divisors (see below), whose sum is σ = 31732445952. Its totient is φ = 2938189280.

The previous prime is 12120031069. The next prime is 12120031193. The reversal of 12120031110 is 1113002121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18363354 + ... + 18364013.

It is an arithmetic number, because the mean of its divisors is an integer number (991638936).

Almost surely, 2^12120031110 is an apocalyptic number.

12120031110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120031110 is an abundant number, since it is smaller than the sum of its proper divisors (19612414842).

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

12120031110 is a wasteful number, since it uses less digits than its factorization.

12120031110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36727388.

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

Adding to 12120031110 its reverse (1113002121), we get a palindrome (13233033231).

The spelling of 12120031110 in words is "twelve billion, one hundred twenty million, thirty-one thousand, one hundred ten".