12324424021 has 16 divisors (see below), whose sum is σ = 15244768000. Its totient is φ = 9702177408.

The previous prime is 12324424001. The next prime is 12324424033. The reversal of 12324424021 is 12042442321.

It is a de Polignac number, because none of the positive numbers 2^k-12324424021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12324424001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322176 + ... + 358393.

It is an arithmetic number, because the mean of its divisors is an integer number (952798000).

Almost surely, 2^12324424021 is an apocalyptic number.

It is an amenable number.

12324424021 is a deficient number, since it is larger than the sum of its proper divisors (2920343979).

12324424021 is a wasteful number, since it uses less digits than its factorization.

12324424021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680788.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12324424021 its reverse (12042442321), we get a palindrome (24366866342).

The spelling of 12324424021 in words is "twelve billion, three hundred twenty-four million, four hundred twenty-four thousand, twenty-one".