13020321303 has 48 divisors (see below), whose sum is σ = 20841649920. Its totient is φ = 7766908800.

The previous prime is 13020321287. The next prime is 13020321319. The reversal of 13020321303 is 30312302031.

It is an interprime number because it is at equal distance from previous prime (13020321287) and next prime (13020321319).

It is not a de Polignac number, because 13020321303 - 2⁴ = 13020321287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020321103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2306158 + ... + 2311796.

It is an arithmetic number, because the mean of its divisors is an integer number (434201040).

Almost surely, 2^13020321303 is an apocalyptic number.

13020321303 is a deficient number, since it is larger than the sum of its proper divisors (7821328617).

13020321303 is a wasteful number, since it uses less digits than its factorization.

13020321303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020 (or 6017 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 13020321303 its reverse (30312302031), we get a palindrome (43332623334).

The spelling of 13020321303 in words is "thirteen billion, twenty million, three hundred twenty-one thousand, three hundred three".