111412113543 has 24 divisors (see below), whose sum is σ = 166839931440. Its totient is φ = 71590093440.

The previous prime is 111412113539. The next prime is 111412113577. The reversal of 111412113543 is 345311214111.

111412113543 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 1 + 2 + 113 + 543 = 666.

It is not a de Polignac number, because 111412113543 - 2² = 111412113539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111412113503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1788228 + ... + 1849481.

It is an arithmetic number, because the mean of its divisors is an integer number (6951663810).

Almost surely, 2^111412113543 is an apocalyptic number.

111412113543 is a deficient number, since it is larger than the sum of its proper divisors (55427817897).

111412113543 is a wasteful number, since it uses less digits than its factorization.

111412113543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637839 (or 3637836 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

Adding to 111412113543 its reverse (345311214111), we get a palindrome (456723327654).

The spelling of 111412113543 in words is "one hundred eleven billion, four hundred twelve million, one hundred thirteen thousand, five hundred forty-three".