243120323 has 8 divisors (see below), whose sum is σ = 249216000. Its totient is φ = 237044808.

The previous prime is 243120307. The next prime is 243120329. The reversal of 243120323 is 323021342.

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

It is a cyclic number.

It is not a de Polignac number, because 243120323 - 2⁴ = 243120307 is a prime.

It is a super-3 number, since 3×243120323³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243120295 and 243120304.

It is not an unprimeable number, because it can be changed into a prime (243120329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21038 + ... + 30476.

It is an arithmetic number, because the mean of its divisors is an integer number (31152000).

Almost surely, 2^243120323 is an apocalyptic number.

243120323 is a deficient number, since it is larger than the sum of its proper divisors (6095677).

243120323 is an equidigital number, since it uses as much as digits as its factorization.

243120323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 243120323 is about 15592.3161525156. The cubic root of 243120323 is about 624.1281265977.

Adding to 243120323 its reverse (323021342), we get a palindrome (566141665).

The spelling of 243120323 in words is "two hundred forty-three million, one hundred twenty thousand, three hundred twenty-three".