13221340135 has 8 divisors (see below), whose sum is σ = 15904401840. Its totient is φ = 10551209664.

The previous prime is 13221340127. The next prime is 13221340159. The reversal of 13221340135 is 53104312231.

It is a happy number.

13221340135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13221340135 - 2³ = 13221340127 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3230557 + ... + 3234646.

It is an arithmetic number, because the mean of its divisors is an integer number (1988050230).

Almost surely, 2^13221340135 is an apocalyptic number.

13221340135 is a deficient number, since it is larger than the sum of its proper divisors (2683061705).

13221340135 is an equidigital number, since it uses as much as digits as its factorization.

13221340135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465617.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13221340135 its reverse (53104312231), we get a palindrome (66325652366).

The spelling of 13221340135 in words is "thirteen billion, two hundred twenty-one million, three hundred forty thousand, one hundred thirty-five".