12240424312111 has 4 divisors (see below), whose sum is σ = 12322574811000. Its totient is φ = 12158273813224.

The previous prime is 12240424312099. The next prime is 12240424312169. The reversal of 12240424312111 is 11121342404221.

12240424312111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12240424312111 - 2³³ = 12231834377519 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 12240424312111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240424312411) 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, 41075249221 + ... + 41075249518.

It is an arithmetic number, because the mean of its divisors is an integer number (3080643702750).

Almost surely, 2^{12240424312111} is an apocalyptic number.

12240424312111 is a deficient number, since it is larger than the sum of its proper divisors (82150498889).

12240424312111 is an equidigital number, since it uses as much as digits as its factorization.

12240424312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82150498888.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 12240424312111 its reverse (11121342404221), we get a palindrome (23361766716332).

The spelling of 12240424312111 in words is "twelve trillion, two hundred forty billion, four hundred twenty-four million, three hundred twelve thousand, one hundred eleven".