13321443203313 has 16 divisors (see below), whose sum is σ = 20428637201280. Its totient is φ = 7563767567616.

The previous prime is 13321443203287. The next prime is 13321443203363. The reversal of 13321443203313 is 31330234412331.

It is a happy number.

It is not a de Polignac number, because 13321443203313 - 2⁶ = 13321443203249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13321443203363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2020233768 + ... + 2020240361.

It is an arithmetic number, because the mean of its divisors is an integer number (1276789825080).

Almost surely, 2^{13321443203313} is an apocalyptic number.

It is an amenable number.

13321443203313 is a deficient number, since it is larger than the sum of its proper divisors (7107193997967).

13321443203313 is a wasteful number, since it uses less digits than its factorization.

13321443203313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040474296.

The product of its (nonzero) digits is 46656, while the sum is 33.

Adding to 13321443203313 its reverse (31330234412331), we get a palindrome (44651677615644).

The spelling of 13321443203313 in words is "thirteen trillion, three hundred twenty-one billion, four hundred forty-three million, two hundred three thousand, three hundred thirteen".