223312133 has 4 divisors (see below), whose sum is σ = 243613248. Its totient is φ = 203011020.

The previous prime is 223312097. The next prime is 223312157. The reversal of 223312133 is 331213322.

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 223312133 - 2¹⁸ = 223049989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223312433) 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, 10150541 + ... + 10150562.

It is an arithmetic number, because the mean of its divisors is an integer number (60903312).

Almost surely, 2^223312133 is an apocalyptic number.

It is an amenable number.

223312133 is a deficient number, since it is larger than the sum of its proper divisors (20301115).

223312133 is a wasteful number, since it uses less digits than its factorization.

223312133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20301114.

The product of its digits is 648, while the sum is 20.

The square root of 223312133 is about 14943.6318544054. The cubic root of 223312133 is about 606.6954994079.

Adding to 223312133 its reverse (331213322), we get a palindrome (554525455).

The spelling of 223312133 in words is "two hundred twenty-three million, three hundred twelve thousand, one hundred thirty-three".