243311230 has 16 divisors (see below), whose sum is σ = 438357744. Its totient is φ = 97236160.

The previous prime is 243311213. The next prime is 243311239. The reversal of 243311230 is 32113342.

It is a super-3 number, since 3×243311230³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 243311198 and 243311207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243311239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170 + ... + 22090.

It is an arithmetic number, because the mean of its divisors is an integer number (27397359).

Almost surely, 2^243311230 is an apocalyptic number.

243311230 is a deficient number, since it is larger than the sum of its proper divisors (195046514).

243311230 is a wasteful number, since it uses less digits than its factorization.

243311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22091.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 243311230 is about 15598.4367806521. The cubic root of 243311230 is about 624.2914466269.

Adding to 243311230 its reverse (32113342), we get a palindrome (275424572).

The spelling of 243311230 in words is "two hundred forty-three million, three hundred eleven thousand, two hundred thirty".