243212043 has 8 divisors (see below), whose sum is σ = 324392656. Its totient is φ = 162086400.

The previous prime is 243212023. The next prime is 243212083. The reversal of 243212043 is 340212342.

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

It is not a de Polignac number, because 243212043 - 2²⁴ = 226434827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243212003) 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, 1978 + ... + 22143.

It is an arithmetic number, because the mean of its divisors is an integer number (40549082).

Almost surely, 2^243212043 is an apocalyptic number.

243212043 is a deficient number, since it is larger than the sum of its proper divisors (81180613).

243212043 is a wasteful number, since it uses less digits than its factorization.

243212043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27485.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243212043 is about 15595.2570674548. The cubic root of 243212043 is about 624.2066032875.

Adding to 243212043 its reverse (340212342), we get a palindrome (583424385).

The spelling of 243212043 in words is "two hundred forty-three million, two hundred twelve thousand, forty-three".