13001443021 has 8 divisors (see below), whose sum is σ = 14898000320. Its totient is φ = 11114687808.

The previous prime is 13001443003. The next prime is 13001443033. The reversal of 13001443021 is 12034410031.

13001443021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13001443021 - 2¹³ = 13001434829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13001443021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001443051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2447676 + ... + 2452981.

It is an arithmetic number, because the mean of its divisors is an integer number (1862250040).

Almost surely, 2^13001443021 is an apocalyptic number.

It is an amenable number.

13001443021 is a deficient number, since it is larger than the sum of its proper divisors (1896557299).

13001443021 is an equidigital number, since it uses as much as digits as its factorization.

13001443021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4901043.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13001443021 its reverse (12034410031), we get a palindrome (25035853052).

The spelling of 13001443021 in words is "thirteen billion, one million, four hundred forty-three thousand, twenty-one".