13003003321 has 32 divisors (see below), whose sum is σ = 16415384832. Its totient is φ = 10005596160.

The previous prime is 13003003319. The next prime is 13003003373. The reversal of 13003003321 is 12330030031.

It is not a de Polignac number, because 13003003321 - 2¹ = 13003003319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13003003295 and 13003003304.

It is not an unprimeable number, because it can be changed into a prime (13003003301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2075025 + ... + 2081281.

It is an arithmetic number, because the mean of its divisors is an integer number (512980776).

Almost surely, 2^13003003321 is an apocalyptic number.

13003003321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13003003321 is a deficient number, since it is larger than the sum of its proper divisors (3412381511).

13003003321 is a wasteful number, since it uses less digits than its factorization.

13003003321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6609.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 13003003321 its reverse (12330030031), we get a palindrome (25333033352).

The spelling of 13003003321 in words is "thirteen billion, three million, three thousand, three hundred twenty-one".