13444444243 has 2 divisors, whose sum is σ = 13444444244. Its totient is φ = 13444444242.

The previous prime is 13444444229. The next prime is 13444444253. The reversal of 13444444243 is 34244444431.

It is a strong prime.

It is an emirp because it is prime and its reverse (34244444431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13444444243 - 2⁹ = 13444443731 is a prime.

It is not a weakly prime, because it can be changed into another prime (13444444253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722222121 + 6722222122.

It is an arithmetic number, because the mean of its divisors is an integer number (6722222122).

Almost surely, 2^13444444243 is an apocalyptic number.

13444444243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444444243 is an equidigital number, since it uses as much as digits as its factorization.

13444444243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294912, while the sum is 37.

Adding to 13444444243 its reverse (34244444431), we get a palindrome (47688888674).

The spelling of 13444444243 in words is "thirteen billion, four hundred forty-four million, four hundred forty-four thousand, two hundred forty-three".