12421023112 has 16 divisors (see below), whose sum is σ = 23386867200. Its totient is φ = 6184525200.

The previous prime is 12421023107. The next prime is 12421023133. The reversal of 12421023112 is 21132012421.

It is a self number, because there is not a number n which added to its sum of digits gives 12421023112.

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, 3246264 + ... + 3250087.

It is an arithmetic number, because the mean of its divisors is an integer number (1461679200).

Almost surely, 2^12421023112 is an apocalyptic number.

It is an amenable number.

12421023112 is a deficient number, since it is larger than the sum of its proper divisors (10965844088).

12421023112 is a wasteful number, since it uses less digits than its factorization.

12421023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496596 (or 6496592 counting only the distinct ones).

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

Adding to 12421023112 its reverse (21132012421), we get a palindrome (33553035533).

The spelling of 12421023112 in words is "twelve billion, four hundred twenty-one million, twenty-three thousand, one hundred twelve".