12031023112 has 32 divisors (see below), whose sum is σ = 22625078400. Its totient is φ = 5997700800.

The previous prime is 12031023083. The next prime is 12031023133. The reversal of 12031023112 is 21132013021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5034814 + ... + 5037202.

It is an arithmetic number, because the mean of its divisors is an integer number (707033700).

Almost surely, 2^12031023112 is an apocalyptic number.

It is an amenable number.

12031023112 is a deficient number, since it is larger than the sum of its proper divisors (10594055288).

12031023112 is a wasteful number, since it uses less digits than its factorization.

12031023112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997 (or 3993 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12031023112 its reverse (21132013021), we get a palindrome (33163036133).

The spelling of 12031023112 in words is "twelve billion, thirty-one million, twenty-three thousand, one hundred twelve".