13043422013 has 4 divisors (see below), whose sum is σ = 13050171708. Its totient is φ = 13036672320.

The previous prime is 13043421983. The next prime is 13043422031. The reversal of 13043422013 is 31022434031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11075878564 + 1967543449 = 105242^2 + 44357^2 .

It is a cyclic number.

It is not a de Polignac number, because 13043422013 - 2⁸ = 13043421757 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 13043422013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043422033) 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, 3371948 + ... + 3375813.

It is an arithmetic number, because the mean of its divisors is an integer number (3262542927).

Almost surely, 2^13043422013 is an apocalyptic number.

It is an amenable number.

13043422013 is a deficient number, since it is larger than the sum of its proper divisors (6749695).

13043422013 is an equidigital number, since it uses as much as digits as its factorization.

13043422013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749694.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13043422013 its reverse (31022434031), we get a palindrome (44065856044).

The spelling of 13043422013 in words is "thirteen billion, forty-three million, four hundred twenty-two thousand, thirteen".