23133133 has 4 divisors (see below), whose sum is σ = 23525280. Its totient is φ = 22740988.

The previous prime is 23133109. The next prime is 23133139. The reversal of 23133133 is 33133132.

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 23133133 - 2¹⁷ = 23002061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23133133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195985 + ... + 196102.

It is an arithmetic number, because the mean of its divisors is an integer number (5881320).

Almost surely, 2^23133133 is an apocalyptic number.

It is an amenable number.

23133133 is a deficient number, since it is larger than the sum of its proper divisors (392147).

23133133 is an equidigital number, since it uses as much as digits as its factorization.

23133133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392146.

The product of its digits is 486, while the sum is 19.

The square root of 23133133 is about 4809.6915701529. The cubic root of 23133133 is about 284.9343564831.

Adding to 23133133 its reverse (33133132), we get a palindrome (56266265).

Subtracting 23133133 from its reverse (33133132), we obtain a palindrome (9999999).

The spelling of 23133133 in words is "twenty-three million, one hundred thirty-three thousand, one hundred thirty-three".