23021233 has 8 divisors (see below), whose sum is σ = 23389416. Its totient is φ = 22656000.

The previous prime is 23021227. The next prime is 23021237. The reversal of 23021233 is 33212032.

It can be written as a sum of positive squares in 4 ways, for example, as 11778624 + 11242609 = 3432^2 + 3353^2 .

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 23021233 - 2²¹ = 20924081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23021237) 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, 18903 + ... + 20083.

It is an arithmetic number, because the mean of its divisors is an integer number (2923677).

Almost surely, 2^23021233 is an apocalyptic number.

It is an amenable number.

23021233 is a deficient number, since it is larger than the sum of its proper divisors (368183).

23021233 is a wasteful number, since it uses less digits than its factorization.

23021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475.

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

The square root of 23021233 is about 4798.0447059193. The cubic root of 23021233 is about 284.4741838627.

Adding to 23021233 its reverse (33212032), we get a palindrome (56233265).

The spelling of 23021233 in words is "twenty-three million, twenty-one thousand, two hundred thirty-three".