13444324243 has 4 divisors (see below), whose sum is σ = 15364942000. Its totient is φ = 11523706488.

The previous prime is 13444324237. The next prime is 13444324253. The reversal of 13444324243 is 34242344431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34242344431 = 104851 ⋅326581.

It is not a de Polignac number, because 13444324243 - 2⁵ = 13444324211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13444324199 and 13444324208.

It is not an unprimeable number, because it can be changed into a prime (13444324253) 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, 960308868 + ... + 960308881.

It is an arithmetic number, because the mean of its divisors is an integer number (3841235500).

Almost surely, 2^13444324243 is an apocalyptic number.

13444324243 is a deficient number, since it is larger than the sum of its proper divisors (1920617757).

13444324243 is an equidigital number, since it uses as much as digits as its factorization.

13444324243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920617756.

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

Adding to 13444324243 its reverse (34242344431), we get a palindrome (47686668674).

The spelling of 13444324243 in words is "thirteen billion, four hundred forty-four million, three hundred twenty-four thousand, two hundred forty-three".