21244140024303 has 24 divisors (see below), whose sum is σ = 32963934037680. Its totient is φ = 12134409893760.

The previous prime is 21244140024253. The next prime is 21244140024307. The reversal of 21244140024303 is 30342004144212.

It is not a de Polignac number, because 21244140024303 - 2⁸ = 21244140024047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21244140024307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29998158 + ... + 30698171.

It is an arithmetic number, because the mean of its divisors is an integer number (1373497251570).

Almost surely, 2^{21244140024303} is an apocalyptic number.

21244140024303 is a deficient number, since it is larger than the sum of its proper divisors (11719794013377).

21244140024303 is a wasteful number, since it uses less digits than its factorization.

21244140024303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60698727 (or 60698720 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 21244140024303 its reverse (30342004144212), we get a palindrome (51586144168515).

The spelling of 21244140024303 in words is "twenty-one trillion, two hundred forty-four billion, one hundred forty million, twenty-four thousand, three hundred three".