12303131212 has 24 divisors (see below), whose sum is σ = 21832146000. Its totient is φ = 6065427456.

The previous prime is 12303131207. The next prime is 12303131219. The reversal of 12303131212 is 21213130321.

12303131212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12303131212.

It is not an unprimeable number, because it can be changed into a prime (12303131219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835964 + ... + 1842652.

It is an arithmetic number, because the mean of its divisors is an integer number (909672750).

Almost surely, 2^12303131212 is an apocalyptic number.

It is an amenable number.

12303131212 is a deficient number, since it is larger than the sum of its proper divisors (9529014788).

12303131212 is a wasteful number, since it uses less digits than its factorization.

12303131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13065 (or 13063 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12303131212 its reverse (21213130321), we get a palindrome (33516261533).

The spelling of 12303131212 in words is "twelve billion, three hundred three million, one hundred thirty-one thousand, two hundred twelve".