12243554443 has 4 divisors (see below), whose sum is σ = 12314326608. Its totient is φ = 12172782280.

The previous prime is 12243554431. The next prime is 12243554527. The reversal of 12243554443 is 34445534221.

12243554443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12243554443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12243554413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35385823 + ... + 35386168.

It is an arithmetic number, because the mean of its divisors is an integer number (3078581652).

Almost surely, 2^12243554443 is an apocalyptic number.

12243554443 is a deficient number, since it is larger than the sum of its proper divisors (70772165).

12243554443 is an equidigital number, since it uses as much as digits as its factorization.

12243554443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70772164.

The product of its digits is 230400, while the sum is 37.

The spelling of 12243554443 in words is "twelve billion, two hundred forty-three million, five hundred fifty-four thousand, four hundred forty-three".