23233021 has 4 divisors (see below), whose sum is σ = 26552032. Its totient is φ = 19914012.

The previous prime is 23232997. The next prime is 23233037. The reversal of 23233021 is 12033232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23233021 - 2⁷ = 23232893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23232986 and 23233004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23233061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1659495 + ... + 1659508.

It is an arithmetic number, because the mean of its divisors is an integer number (6638008).

Almost surely, 2^23233021 is an apocalyptic number.

It is an amenable number.

23233021 is a deficient number, since it is larger than the sum of its proper divisors (3319011).

23233021 is an equidigital number, since it uses as much as digits as its factorization.

23233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319010.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23233021 is about 4820.0644186567. The cubic root of 23233021 is about 285.3438795645.

Adding to 23233021 its reverse (12033232), we get a palindrome (35266253).

The spelling of 23233021 in words is "twenty-three million, two hundred thirty-three thousand, twenty-one".