243234171047111 has 4 divisors (see below), whose sum is σ = 244064321801832. Its totient is φ = 242404020292392.

The previous prime is 243234171047093. The next prime is 243234171047141. The reversal of 243234171047111 is 111740171432342.

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 243234171047111 - 2²⁶ = 243234103938247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243234171047141) 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, 415075376921 + ... + 415075377506.

It is an arithmetic number, because the mean of its divisors is an integer number (61016080450458).

Almost surely, 2^{243234171047111} is an apocalyptic number.

243234171047111 is a deficient number, since it is larger than the sum of its proper divisors (830150754721).

243234171047111 is an equidigital number, since it uses as much as digits as its factorization.

243234171047111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830150754720.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 243234171047111 in words is "two hundred forty-three trillion, two hundred thirty-four billion, one hundred seventy-one million, forty-seven thousand, one hundred eleven".