21110230203223 has 8 divisors (see below), whose sum is σ = 24145293620000. Its totient is φ = 18079995847680.

The previous prime is 21110230203187. The next prime is 21110230203269. The reversal of 21110230203223 is 32230203201112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21110230203223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21110230203194 and 21110230203203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110230293223) 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, 1207255938 + ... + 1207273423.

It is an arithmetic number, because the mean of its divisors is an integer number (3018161702500).

Almost surely, 2^{21110230203223} is an apocalyptic number.

21110230203223 is a deficient number, since it is larger than the sum of its proper divisors (3035063416777).

21110230203223 is a wasteful number, since it uses less digits than its factorization.

21110230203223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414530617.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21110230203223 its reverse (32230203201112), we get a palindrome (53340433404335).

The spelling of 21110230203223 in words is "twenty-one trillion, one hundred ten billion, two hundred thirty million, two hundred three thousand, two hundred twenty-three".