13340420420213 has 4 divisors (see below), whose sum is σ = 13700972323500. Its totient is φ = 12979868516928.

The previous prime is 13340420420143. The next prime is 13340420420219. The reversal of 13340420420213 is 31202402404331.

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 12889665287524 + 450755132689 = 3590218^2 + 671383^2 .

It is a cyclic number.

It is not a de Polignac number, because 13340420420213 - 2¹² = 13340420416117 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 (13340420420219) 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, 180275951588 + ... + 180275951661.

It is an arithmetic number, because the mean of its divisors is an integer number (3425243080875).

Almost surely, 2^{13340420420213} is an apocalyptic number.

It is an amenable number.

13340420420213 is a deficient number, since it is larger than the sum of its proper divisors (360551903287).

13340420420213 is an equidigital number, since it uses as much as digits as its factorization.

13340420420213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360551903286.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 13340420420213 its reverse (31202402404331), we get a palindrome (44542822824544).

The spelling of 13340420420213 in words is "thirteen trillion, three hundred forty billion, four hundred twenty million, four hundred twenty thousand, two hundred thirteen".