21344303024 has 80 divisors (see below), whose sum is σ = 46642728960. Its totient is φ = 9374208000.

The previous prime is 21344303003. The next prime is 21344303039. The reversal of 21344303024 is 42030344312.

It is a junction number, because it is equal to n+sod(n) for n = 21344302984 and 21344303002.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3920144 + ... + 3925584.

It is an arithmetic number, because the mean of its divisors is an integer number (583034112).

Almost surely, 2^21344303024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21344303024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23321364480).

21344303024 is an abundant number, since it is smaller than the sum of its proper divisors (25298425936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21344303024 is a wasteful number, since it uses less digits than its factorization.

21344303024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210 (or 6204 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 21344303024 its reverse (42030344312), we get a palindrome (63374647336).

The spelling of 21344303024 in words is "twenty-one billion, three hundred forty-four million, three hundred three thousand, twenty-four".