201123233 has 4 divisors (see below), whose sum is σ = 201225648. Its totient is φ = 201020820.

The previous prime is 201123229. The next prime is 201123239. The reversal of 201123233 is 332321102.

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 201123233 - 2² = 201123229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201123239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48203 + ... + 52208.

It is an arithmetic number, because the mean of its divisors is an integer number (50306412).

Almost surely, 2^201123233 is an apocalyptic number.

It is an amenable number.

201123233 is a deficient number, since it is larger than the sum of its proper divisors (102415).

201123233 is a wasteful number, since it uses less digits than its factorization.

201123233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102414.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 201123233 is about 14181.7923056291. The cubic root of 201123233 is about 585.8962889221.

Adding to 201123233 its reverse (332321102), we get a palindrome (533444335).

The spelling of 201123233 in words is "two hundred one million, one hundred twenty-three thousand, two hundred thirty-three".