243340323 has 8 divisors (see below), whose sum is σ = 324526848. Its totient is φ = 162190344.

The previous prime is 243340319. The next prime is 243340337. The reversal of 243340323 is 323043342.

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

It is not a de Polignac number, because 243340323 - 2² = 243340319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243340293 and 243340302.

It is not an unprimeable number, because it can be changed into a prime (243340723) 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, 17490 + ... + 28152.

It is an arithmetic number, because the mean of its divisors is an integer number (40565856).

Almost surely, 2^243340323 is an apocalyptic number.

243340323 is a deficient number, since it is larger than the sum of its proper divisors (81186525).

243340323 is a wasteful number, since it uses less digits than its factorization.

243340323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18273.

The product of its (nonzero) digits is 5184, while the sum is 24.

The square root of 243340323 is about 15599.3693141742. The cubic root of 243340323 is about 624.3163280476.

Adding to 243340323 its reverse (323043342), we get a palindrome (566383665).

The spelling of 243340323 in words is "two hundred forty-three million, three hundred forty thousand, three hundred twenty-three".