12031455012 has 24 divisors (see below), whose sum is σ = 28978989312. Its totient is φ = 3881114400.

The previous prime is 12031454969. The next prime is 12031455077. The reversal of 12031455012 is 21055413021.

It is a happy number.

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, 16170939 + ... + 16171682.

It is an arithmetic number, because the mean of its divisors is an integer number (1207457888).

Almost surely, 2^12031455012 is an apocalyptic number.

12031455012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12031455012 is an abundant number, since it is smaller than the sum of its proper divisors (16947534300).

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

12031455012 is a wasteful number, since it uses less digits than its factorization.

12031455012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32342659 (or 32342657 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 12031455012 its reverse (21055413021), we get a palindrome (33086868033).

The spelling of 12031455012 in words is "twelve billion, thirty-one million, four hundred fifty-five thousand, twelve".