21233303023 has 8 divisors (see below), whose sum is σ = 21516749856. Its totient is φ = 20951292000.

The previous prime is 21233303011. The next prime is 21233303041. The reversal of 21233303023 is 32030333212.

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-21233303023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21233302985 and 21233303003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233303053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329163 + ... + 388348.

It is an arithmetic number, because the mean of its divisors is an integer number (2689593732).

Almost surely, 2^21233303023 is an apocalyptic number.

21233303023 is a deficient number, since it is larger than the sum of its proper divisors (283446833).

21233303023 is a wasteful number, since it uses less digits than its factorization.

21233303023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717905.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 21233303023 its reverse (32030333212), we get a palindrome (53263636235).

The spelling of 21233303023 in words is "twenty-one billion, two hundred thirty-three million, three hundred three thousand, twenty-three".