221234323 has 4 divisors (see below), whose sum is σ = 221267160. Its totient is φ = 221201488.

The previous prime is 221234317. The next prime is 221234327. The reversal of 221234323 is 323432122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221234323 - 2⁵ = 221234291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221234294 and 221234303.

It is not an unprimeable number, because it can be changed into a prime (221234327) 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, 2218 + ... + 21151.

It is an arithmetic number, because the mean of its divisors is an integer number (55316790).

Almost surely, 2^221234323 is an apocalyptic number.

221234323 is a deficient number, since it is larger than the sum of its proper divisors (32837).

221234323 is an equidigital number, since it uses as much as digits as its factorization.

221234323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32836.

The product of its digits is 1728, while the sum is 22.

The square root of 221234323 is about 14873.9477947181. The cubic root of 221234323 is about 604.8079649154.

Adding to 221234323 its reverse (323432122), we get a palindrome (544666445).

The spelling of 221234323 in words is "two hundred twenty-one million, two hundred thirty-four thousand, three hundred twenty-three".