243312041 has 16 divisors (see below), whose sum is σ = 298832256. Its totient is φ = 193349376.

The previous prime is 243312023. The next prime is 243312049. The reversal of 243312041 is 140213342.

It is a cyclic number.

It is not a de Polignac number, because 243312041 - 2⁶ = 243311977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243312049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7286 + ... + 23231.

It is an arithmetic number, because the mean of its divisors is an integer number (18677016).

Almost surely, 2^243312041 is an apocalyptic number.

It is an amenable number.

243312041 is a deficient number, since it is larger than the sum of its proper divisors (55520215).

243312041 is a wasteful number, since it uses less digits than its factorization.

243312041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30608.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 243312041 is about 15598.4627768252. The cubic root of 243312041 is about 624.2921402513.

Adding to 243312041 its reverse (140213342), we get a palindrome (383525383).

The spelling of 243312041 in words is "two hundred forty-three million, three hundred twelve thousand, forty-one".