21110524223 has 8 divisors (see below), whose sum is σ = 21166679376. Its totient is φ = 21054398400.

The previous prime is 21110524177. The next prime is 21110524229. The reversal of 21110524223 is 32242501112.

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 21110524223 - 2¹² = 21110520127 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 (21110524229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2674040 + ... + 2681922.

It is an arithmetic number, because the mean of its divisors is an integer number (2645834922).

Almost surely, 2^21110524223 is an apocalyptic number.

21110524223 is a deficient number, since it is larger than the sum of its proper divisors (56155153).

21110524223 is an equidigital number, since it uses as much as digits as its factorization.

21110524223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14665.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 21110524223 in words is "twenty-one billion, one hundred ten million, five hundred twenty-four thousand, two hundred twenty-three".