21032333223 has 16 divisors (see below), whose sum is σ = 30895385472. Its totient is φ = 12620660000.

The previous prime is 21032333219. The next prime is 21032333249. The reversal of 21032333223 is 32233323012.

It is a cyclic number.

It is not a de Polignac number, because 21032333223 - 2² = 21032333219 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 21032333193 and 21032333202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032333213) 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, 3151833 + ... + 3158498.

It is an arithmetic number, because the mean of its divisors is an integer number (1930961592).

Almost surely, 2^21032333223 is an apocalyptic number.

21032333223 is a deficient number, since it is larger than the sum of its proper divisors (9863052249).

21032333223 is a wasteful number, since it uses less digits than its factorization.

21032333223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6310446.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 21032333223 its reverse (32233323012), we get a palindrome (53265656235).

The spelling of 21032333223 in words is "twenty-one billion, thirty-two million, three hundred thirty-three thousand, two hundred twenty-three".