13344121443 has 4 divisors (see below), whose sum is σ = 17792161928. Its totient is φ = 8896080960.

The previous prime is 13344121421. The next prime is 13344121463. The reversal of 13344121443 is 34412144331.

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

It is not a de Polignac number, because 13344121443 - 2⁵ = 13344121411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13344121443.

It is not an unprimeable number, because it can be changed into a prime (13344121463) 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, 2224020238 + ... + 2224020243.

It is an arithmetic number, because the mean of its divisors is an integer number (4448040482).

Almost surely, 2^13344121443 is an apocalyptic number.

13344121443 is a deficient number, since it is larger than the sum of its proper divisors (4448040485).

13344121443 is an equidigital number, since it uses as much as digits as its factorization.

13344121443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448040484.

The product of its digits is 13824, while the sum is 30.

Adding to 13344121443 its reverse (34412144331), we get a palindrome (47756265774).

The spelling of 13344121443 in words is "thirteen billion, three hundred forty-four million, one hundred twenty-one thousand, four hundred forty-three".