23133211 has 4 divisors (see below), whose sum is σ = 23169832. Its totient is φ = 23096592.

The previous prime is 23133199. The next prime is 23133263. The reversal of 23133211 is 11233132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23133211 - 2¹⁹ = 22608923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23133611) 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, 17346 + ... + 18631.

It is an arithmetic number, because the mean of its divisors is an integer number (5792458).

Almost surely, 2^23133211 is an apocalyptic number.

23133211 is a deficient number, since it is larger than the sum of its proper divisors (36621).

23133211 is an equidigital number, since it uses as much as digits as its factorization.

23133211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36620.

The product of its digits is 108, while the sum is 16.

The square root of 23133211 is about 4809.6996787741. The cubic root of 23133211 is about 284.9346767288.

Adding to 23133211 its reverse (11233132), we get a palindrome (34366343).

The spelling of 23133211 in words is "twenty-three million, one hundred thirty-three thousand, two hundred eleven".