21022330023 has 12 divisors (see below), whose sum is σ = 30369955200. Its totient is φ = 14012870976.

The previous prime is 21022330009. The next prime is 21022330031. The reversal of 21022330023 is 32003322012.

It is a happy number.

It is not a de Polignac number, because 21022330023 - 2⁶ = 21022329959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21022329978 and 21022330005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022330003) 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 11 ways as a sum of consecutive naturals, for example, 100498 + ... + 228351.

It is an arithmetic number, because the mean of its divisors is an integer number (2530829600).

Almost surely, 2^21022330023 is an apocalyptic number.

21022330023 is a deficient number, since it is larger than the sum of its proper divisors (9347625177).

21022330023 is a wasteful number, since it uses less digits than its factorization.

21022330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335958 (or 335955 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21022330023 its reverse (32003322012), we get a palindrome (53025652035).

The spelling of 21022330023 in words is "twenty-one billion, twenty-two million, three hundred thirty thousand, twenty-three".