13030448721 has 8 divisors (see below), whose sum is σ = 17376217920. Its totient is φ = 8685822672.

The previous prime is 13030448671. The next prime is 13030448741. The reversal of 13030448721 is 12784403031.

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

It is not a de Polignac number, because 13030448721 - 2¹⁸ = 13030186577 is a prime.

It is a super-2 number, since 2×13030448721² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13030448741) 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, 258826 + ... + 305043.

It is an arithmetic number, because the mean of its divisors is an integer number (2172027240).

Almost surely, 2^13030448721 is an apocalyptic number.

It is an amenable number.

13030448721 is a deficient number, since it is larger than the sum of its proper divisors (4345769199).

13030448721 is an equidigital number, since it uses as much as digits as its factorization.

13030448721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571575.

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 13030448721 in words is "thirteen billion, thirty million, four hundred forty-eight thousand, seven hundred twenty-one".