13401220243013 has 4 divisors (see below), whose sum is σ = 13401637979808. Its totient is φ = 13400802506220.

The previous prime is 13401220242967. The next prime is 13401220243069. The reversal of 13401220243013 is 31034202210431.

13401220243013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13401220243013 - 2²⁸ = 13400951807557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401220243613) 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, 208820273 + ... + 208884438.

It is an arithmetic number, because the mean of its divisors is an integer number (3350409494952).

Almost surely, 2^{13401220243013} is an apocalyptic number.

It is an amenable number.

13401220243013 is a deficient number, since it is larger than the sum of its proper divisors (417736795).

13401220243013 is an equidigital number, since it uses as much as digits as its factorization.

13401220243013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417736794.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 13401220243013 its reverse (31034202210431), we get a palindrome (44435422453444).

The spelling of 13401220243013 in words is "thirteen trillion, four hundred one billion, two hundred twenty million, two hundred forty-three thousand, thirteen".