21344334244303 has 32 divisors (see below), whose sum is σ = 25974718848000. Its totient is φ = 17498938409568.

The previous prime is 21344334244159. The next prime is 21344334244333. The reversal of 21344334244303 is 30344243344312.

It is not a de Polignac number, because 21344334244303 - 2²⁵ = 21344300689871 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 (21344334244333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245059800 + ... + 245146882.

It is an arithmetic number, because the mean of its divisors is an integer number (811709964000).

Almost surely, 2^{21344334244303} is an apocalyptic number.

21344334244303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21344334244303 is a deficient number, since it is larger than the sum of its proper divisors (4630384603697).

21344334244303 is an equidigital number, since it uses as much as digits as its factorization.

21344334244303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118196 (or 118182 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 40.

Adding to 21344334244303 its reverse (30344243344312), we get a palindrome (51688577588615).

It can be divided in two parts, 2134433 and 4244303, that added together give a palindrome (6378736).

The spelling of 21344334244303 in words is "twenty-one trillion, three hundred forty-four billion, three hundred thirty-four million, two hundred forty-four thousand, three hundred three".