233343213 has 4 divisors (see below), whose sum is σ = 311124288. Its totient is φ = 155562140.

The previous prime is 233343197. The next prime is 233343217. The reversal of 233343213 is 312343332.

It is a happy number.

233343213 is nontrivially palindromic in base 16.

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 233343213 - 2⁴ = 233343197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233343217) 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, 38890533 + ... + 38890538.

It is an arithmetic number, because the mean of its divisors is an integer number (77781072).

Almost surely, 2^233343213 is an apocalyptic number.

It is an amenable number.

233343213 is a deficient number, since it is larger than the sum of its proper divisors (77781075).

233343213 is an equidigital number, since it uses as much as digits as its factorization.

233343213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77781074.

The product of its digits is 3888, while the sum is 24.

The square root of 233343213 is about 15275.5757010988. The cubic root of 233343213 is about 615.6469390276.

Adding to 233343213 its reverse (312343332), we get a palindrome (545686545).

The spelling of 233343213 in words is "two hundred thirty-three million, three hundred forty-three thousand, two hundred thirteen".