13204321222431 has 4 divisors (see below), whose sum is σ = 17605761629912. Its totient is φ = 8802880814952.

The previous prime is 13204321222429. The next prime is 13204321222453. The reversal of 13204321222431 is 13422212340231.

It is a happy number.

13204321222431 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.

It is not a de Polignac number, because 13204321222431 - 2¹ = 13204321222429 is a prime.

It is a super-2 number, since 2×13204321222431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204321226431) 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, 2200720203736 + ... + 2200720203741.

It is an arithmetic number, because the mean of its divisors is an integer number (4401440407478).

Almost surely, 2^{13204321222431} is an apocalyptic number.

13204321222431 is a deficient number, since it is larger than the sum of its proper divisors (4401440407481).

13204321222431 is an equidigital number, since it uses as much as digits as its factorization.

13204321222431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401440407480.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 13204321222431 its reverse (13422212340231), we get a palindrome (26626533562662).

The spelling of 13204321222431 in words is "thirteen trillion, two hundred four billion, three hundred twenty-one million, two hundred twenty-two thousand, four hundred thirty-one".