12331213012 has 12 divisors (see below), whose sum is σ = 21580785940. Its totient is φ = 6165274176.

The previous prime is 12331212991. The next prime is 12331213051. The reversal of 12331213012 is 21031213321.

It can be written as a sum of positive squares in 2 ways, for example, as 4040382096 + 8290830916 = 63564^2 + 91054^2 .

It is a super-2 number, since 2×12331213012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12664 + ... + 157552.

Almost surely, 2^12331213012 is an apocalyptic number.

It is an amenable number.

12331213012 is a deficient number, since it is larger than the sum of its proper divisors (9249572928).

12331213012 is a wasteful number, since it uses less digits than its factorization.

12331213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166170 (or 166168 counting only the distinct ones).

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

Adding to 12331213012 its reverse (21031213321), we get a palindrome (33362426333).

The spelling of 12331213012 in words is "twelve billion, three hundred thirty-one million, two hundred thirteen thousand, twelve".