21343224021303 has 8 divisors (see below), whose sum is σ = 30131610383088. Its totient is φ = 13391826836864.

The previous prime is 21343224021271. The next prime is 21343224021397. The reversal of 21343224021303 is 30312042234312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21343224021303 - 2⁵ = 21343224021271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343224021503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209247294276 + ... + 209247294377.

It is an arithmetic number, because the mean of its divisors is an integer number (3766451297886).

Almost surely, 2^{21343224021303} is an apocalyptic number.

21343224021303 is a deficient number, since it is larger than the sum of its proper divisors (8788386361785).

21343224021303 is a wasteful number, since it uses less digits than its factorization.

21343224021303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418494588673.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 21343224021303 its reverse (30312042234312), we get a palindrome (51655266255615).

The spelling of 21343224021303 in words is "twenty-one trillion, three hundred forty-three billion, two hundred twenty-four million, twenty-one thousand, three hundred three".