12432422243 has 4 divisors (see below), whose sum is σ = 12453969480. Its totient is φ = 12410875008.

The previous prime is 12432422221. The next prime is 12432422273. The reversal of 12432422243 is 34222423421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12432422243 - 2¹⁶ = 12432356707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12432422273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10772753 + ... + 10773906.

It is an arithmetic number, because the mean of its divisors is an integer number (3113492370).

Almost surely, 2^12432422243 is an apocalyptic number.

12432422243 is a deficient number, since it is larger than the sum of its proper divisors (21547237).

12432422243 is an equidigital number, since it uses as much as digits as its factorization.

12432422243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21547236.

The product of its digits is 18432, while the sum is 29.

Adding to 12432422243 its reverse (34222423421), we get a palindrome (46654845664).

The spelling of 12432422243 in words is "twelve billion, four hundred thirty-two million, four hundred twenty-two thousand, two hundred forty-three".