12031231308 has 24 divisors (see below), whose sum is σ = 28074686640. Its totient is φ = 4010151360.

The previous prime is 12031231301. The next prime is 12031231309. The reversal of 12031231308 is 80313213021.

It is not an unprimeable number, because it can be changed into a prime (12031231301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287478 + ... + 326658.

It is an arithmetic number, because the mean of its divisors is an integer number (1169778610).

Almost surely, 2^12031231308 is an apocalyptic number.

It is an amenable number.

12031231308 is an abundant number, since it is smaller than the sum of its proper divisors (16043455332).

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

12031231308 is a wasteful number, since it uses less digits than its factorization.

12031231308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64777 (or 64775 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12031231308 its reverse (80313213021), we get a palindrome (92344444329).

The spelling of 12031231308 in words is "twelve billion, thirty-one million, two hundred thirty-one thousand, three hundred eight".