21223302023 has 8 divisors (see below), whose sum is σ = 26460220800. Its totient is φ = 16537637880.

The previous prime is 21223302011. The next prime is 21223302059. The reversal of 21223302023 is 32020332212.

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 21223302023 - 2²⁸ = 20954866567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21223301986 and 21223302004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223302223) 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, 137813573 + ... + 137813726.

It is an arithmetic number, because the mean of its divisors is an integer number (3307527600).

Almost surely, 2^21223302023 is an apocalyptic number.

21223302023 is a deficient number, since it is larger than the sum of its proper divisors (5236918777).

21223302023 is a wasteful number, since it uses less digits than its factorization.

21223302023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275627317.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21223302023 its reverse (32020332212), we get a palindrome (53243634235).

The spelling of 21223302023 in words is "twenty-one billion, two hundred twenty-three million, three hundred two thousand, twenty-three".