13321403310343 has 4 divisors (see below), whose sum is σ = 13359793521960. Its totient is φ = 13283013098728.

The previous prime is 13321403310181. The next prime is 13321403310379. The reversal of 13321403310343 is 34301330412331.

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 13321403310343 - 2²¹ = 13321401213191 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 (13321403316343) 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, 19195105288 + ... + 19195105981.

It is an arithmetic number, because the mean of its divisors is an integer number (3339948380490).

Almost surely, 2^{13321403310343} is an apocalyptic number.

13321403310343 is a deficient number, since it is larger than the sum of its proper divisors (38390211617).

13321403310343 is an equidigital number, since it uses as much as digits as its factorization.

13321403310343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38390211616.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 13321403310343 its reverse (34301330412331), we get a palindrome (47622733722674).

The spelling of 13321403310343 in words is "thirteen trillion, three hundred twenty-one billion, four hundred three million, three hundred ten thousand, three hundred forty-three".