13328030721 has 8 divisors (see below), whose sum is σ = 17772974464. Its totient is φ = 8884220400.

The previous prime is 13328030711. The next prime is 13328030759. The reversal of 13328030721 is 12703082331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13328030721 - 2⁶ = 13328030657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13328030701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255526 + ... + 303231.

It is an arithmetic number, because the mean of its divisors is an integer number (2221621808).

Almost surely, 2^13328030721 is an apocalyptic number.

It is an amenable number.

13328030721 is a deficient number, since it is larger than the sum of its proper divisors (4444943743).

13328030721 is an equidigital number, since it uses as much as digits as its factorization.

13328030721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566711.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 13328030721 in words is "thirteen billion, three hundred twenty-eight million, thirty thousand, seven hundred twenty-one".