243321223 has 8 divisors (see below), whose sum is σ = 254746800. Its totient is φ = 232098048.

The previous prime is 243321217. The next prime is 243321227. The reversal of 243321223 is 322123342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243321223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243321194 and 243321203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243321227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48138 + ... + 52951.

It is an arithmetic number, because the mean of its divisors is an integer number (31843350).

Almost surely, 2^243321223 is an apocalyptic number.

243321223 is a deficient number, since it is larger than the sum of its proper divisors (11425577).

243321223 is a wasteful number, since it uses less digits than its factorization.

243321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101201.

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

The square root of 243321223 is about 15598.7570979229. The cubic root of 243321223 is about 624.2999932376.

Adding to 243321223 its reverse (322123342), we get a palindrome (565444565).

The spelling of 243321223 in words is "two hundred forty-three million, three hundred twenty-one thousand, two hundred twenty-three".