12443324043 has 4 divisors (see below), whose sum is σ = 16591098728. Its totient is φ = 8295549360.

The previous prime is 12443324017. The next prime is 12443324051. The reversal of 12443324043 is 34042334421.

It is a happy number.

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

It is not a de Polignac number, because 12443324043 - 2¹² = 12443319947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12443324043.

It is not an unprimeable number, because it can be changed into a prime (12443322043) 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, 2073887338 + ... + 2073887343.

It is an arithmetic number, because the mean of its divisors is an integer number (4147774682).

Almost surely, 2^12443324043 is an apocalyptic number.

12443324043 is a deficient number, since it is larger than the sum of its proper divisors (4147774685).

12443324043 is an equidigital number, since it uses as much as digits as its factorization.

12443324043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147774684.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 12443324043 its reverse (34042334421), we get a palindrome (46485658464).

The spelling of 12443324043 in words is "twelve billion, four hundred forty-three million, three hundred twenty-four thousand, forty-three".