12131304412 has 12 divisors (see below), whose sum is σ = 21273379120. Its totient is φ = 6053196096.

The previous prime is 12131304403. The next prime is 12131304413. The reversal of 12131304412 is 21440313121.

It is a super-3 number, since 3×12131304412³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131304413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3111837 + ... + 3115732.

Almost surely, 2^12131304412 is an apocalyptic number.

It is an amenable number.

12131304412 is a deficient number, since it is larger than the sum of its proper divisors (9142074708).

12131304412 is a wasteful number, since it uses less digits than its factorization.

12131304412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6228060 (or 6228058 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12131304412 its reverse (21440313121), we get a palindrome (33571617533).

The spelling of 12131304412 in words is "twelve billion, one hundred thirty-one million, three hundred four thousand, four hundred twelve".