12443204113 has 4 divisors (see below), whose sum is σ = 12526715700. Its totient is φ = 12359692528.

The previous prime is 12443204071. The next prime is 12443204129. The reversal of 12443204113 is 31140234421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6141543424 + 6301660689 = 78368^2 + 79383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12443204113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12443204413) 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, 41755570 + ... + 41755867.

It is an arithmetic number, because the mean of its divisors is an integer number (3131678925).

Almost surely, 2^12443204113 is an apocalyptic number.

It is an amenable number.

12443204113 is a deficient number, since it is larger than the sum of its proper divisors (83511587).

12443204113 is an equidigital number, since it uses as much as digits as its factorization.

12443204113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83511586.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12443204113 its reverse (31140234421), we get a palindrome (43583438534).

The spelling of 12443204113 in words is "twelve billion, four hundred forty-three million, two hundred four thousand, one hundred thirteen".