13122440443 has 24 divisors (see below), whose sum is σ = 15656127984. Its totient is φ = 10960185600.

The previous prime is 13122440407. The next prime is 13122440473. The reversal of 13122440443 is 34404422131.

13122440443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13122440443 - 2²⁵ = 13088886011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13122440473) 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 23 ways as a sum of consecutive naturals, for example, 1878948 + ... + 1885918.

It is an arithmetic number, because the mean of its divisors is an integer number (652338666).

Almost surely, 2^13122440443 is an apocalyptic number.

13122440443 is a deficient number, since it is larger than the sum of its proper divisors (2533687541).

13122440443 is an equidigital number, since it uses as much as digits as its factorization.

13122440443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7963 (or 7956 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 13122440443 its reverse (34404422131), we get a palindrome (47526862574).

The spelling of 13122440443 in words is "thirteen billion, one hundred twenty-two million, four hundred forty thousand, four hundred forty-three".