21323024233 has 8 divisors (see below), whose sum is σ = 24370304000. Its totient is φ = 18276027840.

The previous prime is 21323024209. The next prime is 21323024243. The reversal of 21323024233 is 33242032312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21323024233 - 2²¹ = 21320927081 is a prime.

It is a super-2 number, since 2×21323024233² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21323024198 and 21323024207.

It is not an unprimeable number, because it can be changed into a prime (21323024243) 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, 127393 + ... + 242641.

It is an arithmetic number, because the mean of its divisors is an integer number (3046288000).

Almost surely, 2^21323024233 is an apocalyptic number.

It is an amenable number.

21323024233 is a deficient number, since it is larger than the sum of its proper divisors (3047279767).

21323024233 is a wasteful number, since it uses less digits than its factorization.

21323024233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141687.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21323024233 its reverse (33242032312), we get a palindrome (54565056545).

The spelling of 21323024233 in words is "twenty-one billion, three hundred twenty-three million, twenty-four thousand, two hundred thirty-three".