233143223213 has 4 divisors (see below), whose sum is σ = 234072080928. Its totient is φ = 232214365500.

The previous prime is 233143223161. The next prime is 233143223237. The reversal of 233143223213 is 312322341332.

It is a happy number.

233143223213 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 233143223213 - 2¹⁰ = 233143222189 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 (233143226213) 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, 464428481 + ... + 464428982.

It is an arithmetic number, because the mean of its divisors is an integer number (58518020232).

Almost surely, 2^233143223213 is an apocalyptic number.

It is an amenable number.

233143223213 is a deficient number, since it is larger than the sum of its proper divisors (928857715).

233143223213 is an equidigital number, since it uses as much as digits as its factorization.

233143223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928857714.

The product of its digits is 15552, while the sum is 29.

Adding to 233143223213 its reverse (312322341332), we get a palindrome (545465564545).

The spelling of 233143223213 in words is "two hundred thirty-three billion, one hundred forty-three million, two hundred twenty-three thousand, two hundred thirteen".