13420243013 has 4 divisors (see below), whose sum is σ = 13420579500. Its totient is φ = 13419906528.

The previous prime is 13420242991. The next prime is 13420243019. The reversal of 13420243013 is 31034202431.

13420243013 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 an emirpimes, since its reverse is a distinct semiprime: 31034202431 = 101 ⋅307269331.

It can be written as a sum of positive squares in 2 ways, for example, as 12558115969 + 862127044 = 112063^2 + 29362^2 .

It is a cyclic number.

It is not a de Polignac number, because 13420243013 - 2³² = 9125275717 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 13420243013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420243019) 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 3 ways as a sum of consecutive naturals, for example, 98888 + ... + 191361.

It is an arithmetic number, because the mean of its divisors is an integer number (3355144875).

Almost surely, 2^13420243013 is an apocalyptic number.

It is an amenable number.

13420243013 is a deficient number, since it is larger than the sum of its proper divisors (336487).

13420243013 is an equidigital number, since it uses as much as digits as its factorization.

13420243013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336486.

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

Adding to 13420243013 its reverse (31034202431), we get a palindrome (44454445444).

The spelling of 13420243013 in words is "thirteen billion, four hundred twenty million, two hundred forty-three thousand, thirteen".