12312402112 has 28 divisors (see below), whose sum is σ = 24496263936. Its totient is φ = 6140115200.

The previous prime is 12312402103. The next prime is 12312402127. The reversal of 12312402112 is 21120421321.

It is a self number, because there is not a number n which added to its sum of digits gives 12312402112.

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, 226639 + ... + 275662.

Almost surely, 2^12312402112 is an apocalyptic number.

It is an amenable number.

12312402112 is a deficient number, since it is larger than the sum of its proper divisors (12183861824).

12312402112 is an equidigital number, since it uses as much as digits as its factorization.

12312402112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502696 (or 502686 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12312402112 its reverse (21120421321), we get a palindrome (33432823433).

The spelling of 12312402112 in words is "twelve billion, three hundred twelve million, four hundred two thousand, one hundred twelve".