243412201111 has 4 divisors (see below), whose sum is σ = 243424922472. Its totient is φ = 243399479752.

The previous prime is 243412201027. The next prime is 243412201127. The reversal of 243412201111 is 111102214342.

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 243412201111 - 2⁹ = 243412200599 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 (243412204111) 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, 6331936 + ... + 6370261.

It is an arithmetic number, because the mean of its divisors is an integer number (60856230618).

Almost surely, 2^243412201111 is an apocalyptic number.

243412201111 is a deficient number, since it is larger than the sum of its proper divisors (12721361).

243412201111 is a wasteful number, since it uses less digits than its factorization.

243412201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12721360.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 243412201111 its reverse (111102214342), we get a palindrome (354514415453).

The spelling of 243412201111 in words is "two hundred forty-three billion, four hundred twelve million, two hundred one thousand, one hundred eleven".