243234331 has 8 divisors (see below), whose sum is σ = 249316704. Its totient is φ = 237207360.

The previous prime is 243234253. The next prime is 243234391. The reversal of 243234331 is 133432342.

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 243234331 - 2¹⁹ = 242710043 is a prime.

It is a super-2 number, since 2×243234331² = 118325879554035122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243234296 and 243234305.

It is not an unprimeable number, because it can be changed into a prime (243234391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4890 + ... + 22591.

It is an arithmetic number, because the mean of its divisors is an integer number (31164588).

Almost surely, 2^243234331 is an apocalyptic number.

243234331 is a deficient number, since it is larger than the sum of its proper divisors (6082373).

243234331 is a wasteful number, since it uses less digits than its factorization.

243234331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27701.

The product of its digits is 5184, while the sum is 25.

The square root of 243234331 is about 15595.9716273145. The cubic root of 243234331 is about 624.2256701775.

Adding to 243234331 its reverse (133432342), we get a palindrome (376666673).

It can be divided in two parts, 2432 and 34331, that added together give a palindrome (36763).

The spelling of 243234331 in words is "two hundred forty-three million, two hundred thirty-four thousand, three hundred thirty-one".