13320003021 has 16 divisors (see below), whose sum is σ = 19785682560. Its totient is φ = 7914271680.

The previous prime is 13320002987. The next prime is 13320003023. The reversal of 13320003021 is 12030002331.

It is not a de Polignac number, because 13320003021 - 2⁷ = 13320002893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320003023) 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, 5887465 + ... + 5889726.

It is an arithmetic number, because the mean of its divisors is an integer number (1236605160).

Almost surely, 2^13320003021 is an apocalyptic number.

It is an amenable number.

13320003021 is a deficient number, since it is larger than the sum of its proper divisors (6465679539).

13320003021 is a wasteful number, since it uses less digits than its factorization.

13320003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11777236.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 13320003021 its reverse (12030002331), we get a palindrome (25350005352).

The spelling of 13320003021 in words is "thirteen billion, three hundred twenty million, three thousand, twenty-one".