13043444443 has 4 divisors (see below), whose sum is σ = 13043708640. Its totient is φ = 13043180248.

The previous prime is 13043444423. The next prime is 13043444459. The reversal of 13043444443 is 34444434031.

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 13043444443 - 2²⁹ = 12506573531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13043444399 and 13043444408.

It is not an unprimeable number, because it can be changed into a prime (13043444413) 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, 33523 + ... + 164956.

It is an arithmetic number, because the mean of its divisors is an integer number (3260927160).

Almost surely, 2^13043444443 is an apocalyptic number.

13043444443 is a deficient number, since it is larger than the sum of its proper divisors (264197).

13043444443 is an equidigital number, since it uses as much as digits as its factorization.

13043444443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264196.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 13043444443 its reverse (34444434031), we get a palindrome (47487878474).

The spelling of 13043444443 in words is "thirteen billion, forty-three million, four hundred forty-four thousand, four hundred forty-three".