21244301013 has 8 divisors (see below), whose sum is σ = 30504637408. Its totient is φ = 13073415984.

The previous prime is 21244300999. The next prime is 21244301017. The reversal of 21244301013 is 31010344212.

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

It is not a de Polignac number, because 21244301013 - 2⁵ = 21244300981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21244301017) 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, 272362795 + ... + 272362872.

It is an arithmetic number, because the mean of its divisors is an integer number (3813079676).

Almost surely, 2^21244301013 is an apocalyptic number.

It is an amenable number.

21244301013 is a deficient number, since it is larger than the sum of its proper divisors (9260336395).

21244301013 is a wasteful number, since it uses less digits than its factorization.

21244301013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544725683.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21244301013 its reverse (31010344212), we get a palindrome (52254645225).

The spelling of 21244301013 in words is "twenty-one billion, two hundred forty-four million, three hundred one thousand, thirteen".