21113200033223 has 4 divisors (see below), whose sum is σ = 21119694407448. Its totient is φ = 21106705659000.

The previous prime is 21113200033153. The next prime is 21113200033259. The reversal of 21113200033223 is 32233000231112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21113200033223 - 2¹² = 21113200029127 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 (21113200033423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3247182236 + ... + 3247188737.

It is an arithmetic number, because the mean of its divisors is an integer number (5279923601862).

Almost surely, 2^{21113200033223} is an apocalyptic number.

21113200033223 is a deficient number, since it is larger than the sum of its proper divisors (6494374225).

21113200033223 is an equidigital number, since it uses as much as digits as its factorization.

21113200033223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494374224.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21113200033223 its reverse (32233000231112), we get a palindrome (53346200264335).

The spelling of 21113200033223 in words is "twenty-one trillion, one hundred thirteen billion, two hundred million, thirty-three thousand, two hundred twenty-three".