243041011 has 4 divisors (see below), whose sum is σ = 243467224. Its totient is φ = 242614800.

The previous prime is 243041003. The next prime is 243041033. The reversal of 243041011 is 110140342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243041011 - 2³ = 243041003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243041081) 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, 212250 + ... + 213391.

It is an arithmetic number, because the mean of its divisors is an integer number (60866806).

Almost surely, 2^243041011 is an apocalyptic number.

243041011 is a deficient number, since it is larger than the sum of its proper divisors (426213).

243041011 is an equidigital number, since it uses as much as digits as its factorization.

243041011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426212.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 243041011 is about 15589.7726410618. The cubic root of 243041011 is about 624.0602504214.

Adding to 243041011 its reverse (110140342), we get a palindrome (353181353).

The spelling of 243041011 in words is "two hundred forty-three million, forty-one thousand, eleven".