12240043432111 has 12 divisors (see below), whose sum is σ = 13420899767160. Its totient is φ = 11070828006560.

The previous prime is 12240043432079. The next prime is 12240043432139. The reversal of 12240043432111 is 11123434004221.

It is a happy number.

It is not a de Polignac number, because 12240043432111 - 2⁵ = 12240043432079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12240043432111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240043436111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13909096 + ... + 14762893.

It is an arithmetic number, because the mean of its divisors is an integer number (1118408313930).

Almost surely, 2^{12240043432111} is an apocalyptic number.

12240043432111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12240043432111 is a deficient number, since it is larger than the sum of its proper divisors (1180856335049).

12240043432111 is an equidigital number, since it uses as much as digits as its factorization.

12240043432111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28672394 (or 28672197 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 12240043432111 its reverse (11123434004221), we get a palindrome (23363477436332).

The spelling of 12240043432111 in words is "twelve trillion, two hundred forty billion, forty-three million, four hundred thirty-two thousand, one hundred eleven".