13321103340431 has 4 divisors (see below), whose sum is σ = 14104697654592. Its totient is φ = 12537509026272.

The previous prime is 13321103340379. The next prime is 13321103340449. The reversal of 13321103340431 is 13404330112331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13321103340431 - 2³⁰ = 13320029598607 is a prime.

It is a super-2 number, since 2×13321103340431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13321103340394 and 13321103340403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321103340631) 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, 391797157055 + ... + 391797157088.

It is an arithmetic number, because the mean of its divisors is an integer number (3526174413648).

Almost surely, 2^{13321103340431} is an apocalyptic number.

13321103340431 is a deficient number, since it is larger than the sum of its proper divisors (783594314161).

13321103340431 is an equidigital number, since it uses as much as digits as its factorization.

13321103340431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783594314160.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 13321103340431 its reverse (13404330112331), we get a palindrome (26725433452762).

The spelling of 13321103340431 in words is "thirteen trillion, three hundred twenty-one billion, one hundred three million, three hundred forty thousand, four hundred thirty-one".