12324421443 has 16 divisors (see below), whose sum is σ = 16784862336. Its totient is φ = 8041849920.

The previous prime is 12324421433. The next prime is 12324421457. The reversal of 12324421443 is 34412442321.

It is not a de Polignac number, because 12324421443 - 2⁹ = 12324420931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12324421443.

It is not an unprimeable number, because it can be changed into a prime (12324421423) 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, 186105 + ... + 243482.

It is an arithmetic number, because the mean of its divisors is an integer number (1049053896).

Almost surely, 2^12324421443 is an apocalyptic number.

12324421443 is a deficient number, since it is larger than the sum of its proper divisors (4460440893).

12324421443 is a wasteful number, since it uses less digits than its factorization.

12324421443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429794.

The product of its digits is 18432, while the sum is 30.

Adding to 12324421443 its reverse (34412442321), we get a palindrome (46736863764).

The spelling of 12324421443 in words is "twelve billion, three hundred twenty-four million, four hundred twenty-one thousand, four hundred forty-three".