243010231 has 4 divisors (see below), whose sum is σ = 243041472. Its totient is φ = 242978992.

The previous prime is 243010219. The next prime is 243010237. The reversal of 243010231 is 132010342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 132010342 = 2 ⋅66005171.

It is a cyclic number.

It is not a de Polignac number, because 243010231 - 2⁵ = 243010199 is a prime.

It is a super-2 number, since 2×243010231² = 118107944741346722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243010237) 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, 6330 + ... + 22936.

It is an arithmetic number, because the mean of its divisors is an integer number (60760368).

Almost surely, 2^243010231 is an apocalyptic number.

243010231 is a deficient number, since it is larger than the sum of its proper divisors (31241).

243010231 is a wasteful number, since it uses less digits than its factorization.

243010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31240.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 243010231 is about 15588.7854241439. The cubic root of 243010231 is about 624.0339045448.

Adding to 243010231 its reverse (132010342), we get a palindrome (375020573).

The spelling of 243010231 in words is "two hundred forty-three million, ten thousand, two hundred thirty-one".