21414204442303 has 16 divisors (see below), whose sum is σ = 21917271068640. Its totient is φ = 20914830009216.

The previous prime is 21414204442289. The next prime is 21414204442321. The reversal of 21414204442303 is 30324440241412.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21414204442303 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 (21414204442003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93595201 + ... + 93823717.

It is an arithmetic number, because the mean of its divisors is an integer number (1369829441790).

Almost surely, 2^{21414204442303} is an apocalyptic number.

21414204442303 is a deficient number, since it is larger than the sum of its proper divisors (503066626337).

21414204442303 is a wasteful number, since it uses less digits than its factorization.

21414204442303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236586.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 21414204442303 its reverse (30324440241412), we get a palindrome (51738644683715).

The spelling of 21414204442303 in words is "twenty-one trillion, four hundred fourteen billion, two hundred four million, four hundred forty-two thousand, three hundred three".