233123221133 has 4 divisors (see below), whose sum is σ = 254316241248. Its totient is φ = 211930201020.

The previous prime is 233123221109. The next prime is 233123221141. The reversal of 233123221133 is 331122321332.

233123221133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 233123221133 - 2²⁶ = 233056112269 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 (233123221103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10596510041 + ... + 10596510062.

It is an arithmetic number, because the mean of its divisors is an integer number (63579060312).

Almost surely, 2^233123221133 is an apocalyptic number.

It is an amenable number.

233123221133 is a deficient number, since it is larger than the sum of its proper divisors (21193020115).

233123221133 is a wasteful number, since it uses less digits than its factorization.

233123221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21193020114.

The product of its digits is 3888, while the sum is 26.

Adding to 233123221133 its reverse (331122321332), we get a palindrome (564245542465).

The spelling of 233123221133 in words is "two hundred thirty-three billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred thirty-three".