13321323202303 has 4 divisors (see below), whose sum is σ = 13401091604880. Its totient is φ = 13241554799728.

The previous prime is 13321323202261. The next prime is 13321323202361. The reversal of 13321323202303 is 30320232312331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13321323202303 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 (13321320202303) 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, 39884201038 + ... + 39884201371.

It is an arithmetic number, because the mean of its divisors is an integer number (3350272901220).

Almost surely, 2^{13321323202303} is an apocalyptic number.

13321323202303 is a deficient number, since it is larger than the sum of its proper divisors (79768402577).

13321323202303 is an equidigital number, since it uses as much as digits as its factorization.

13321323202303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79768402576.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 13321323202303 its reverse (30320232312331), we get a palindrome (43641555514634).

The spelling of 13321323202303 in words is "thirteen trillion, three hundred twenty-one billion, three hundred twenty-three million, two hundred two thousand, three hundred three".