243441011 has 4 divisors (see below), whose sum is σ = 265572024. Its totient is φ = 221310000.

The previous prime is 243440999. The next prime is 243441013. The reversal of 243441011 is 110144342.

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 243441011 - 2¹⁴ = 243424627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243441013) 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, 11065490 + ... + 11065511.

It is an arithmetic number, because the mean of its divisors is an integer number (66393006).

Almost surely, 2^243441011 is an apocalyptic number.

243441011 is a deficient number, since it is larger than the sum of its proper divisors (22131013).

243441011 is a wasteful number, since it uses less digits than its factorization.

243441011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22131012.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 243441011 is about 15602.5962903614. The cubic root of 243441011 is about 624.4024248818.

Adding to 243441011 its reverse (110144342), we get a palindrome (353585353).

The spelling of 243441011 in words is "two hundred forty-three million, four hundred forty-one thousand, eleven".