12031231108 has 24 divisors (see below), whose sum is σ = 22929018840. Its totient is φ = 5490481920.

The previous prime is 12031231097. The next prime is 12031231123. The reversal of 12031231108 is 80113213021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 366799104 + 11664432004 = 19152^2 + 108002^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295203 + ... + 1304458.

It is an arithmetic number, because the mean of its divisors is an integer number (955375785).

Almost surely, 2^12031231108 is an apocalyptic number.

It is an amenable number.

12031231108 is a deficient number, since it is larger than the sum of its proper divisors (10897787732).

12031231108 is a wasteful number, since it uses less digits than its factorization.

12031231108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599767 (or 2599765 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12031231108 its reverse (80113213021), we get a palindrome (92144444129).

The spelling of 12031231108 in words is "twelve billion, thirty-one million, two hundred thirty-one thousand, one hundred eight".