12111213432344 has 64 divisors (see below), whose sum is σ = 24555155819040. Its totient is φ = 5566978944000.

The previous prime is 12111213432343. The next prime is 12111213432349. The reversal of 12111213432344 is 44323431211121.

It is a self number, because there is not a number n which added to its sum of digits gives 12111213432344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111213432343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412872302 + ... + 412901634.

Almost surely, 2^{12111213432344} is an apocalyptic number.

It is an amenable number.

12111213432344 is an abundant number, since it is smaller than the sum of its proper divisors (12443942386696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111213432344 is a wasteful number, since it uses less digits than its factorization.

12111213432344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45420 (or 45416 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

Adding to 12111213432344 its reverse (44323431211121), we get a palindrome (56434644643465).

The spelling of 12111213432344 in words is "twelve trillion, one hundred eleven billion, two hundred thirteen million, four hundred thirty-two thousand, three hundred forty-four".