12321442124 has 12 divisors (see below), whose sum is σ = 21565429200. Its totient is φ = 6159890928.

The previous prime is 12321442123. The next prime is 12321442141. The reversal of 12321442124 is 42124412321.

12321442124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12321442093 and 12321442102.

It is not an unprimeable number, because it can be changed into a prime (12321442123) 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 3 ways as a sum of consecutive naturals, for example, 173519 + ... + 233990.

It is an arithmetic number, because the mean of its divisors is an integer number (1797119100).

Almost surely, 2^12321442124 is an apocalyptic number.

It is an amenable number.

12321442124 is a deficient number, since it is larger than the sum of its proper divisors (9243987076).

12321442124 is a wasteful number, since it uses less digits than its factorization.

12321442124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415072 (or 415070 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

Adding to 12321442124 its reverse (42124412321), we get a palindrome (54445854445).

The spelling of 12321442124 in words is "twelve billion, three hundred twenty-one million, four hundred forty-two thousand, one hundred twenty-four".