111120543 has 12 divisors (see below), whose sum is σ = 161059080. Its totient is φ = 73825776.

The previous prime is 111120533. The next prime is 111120571. The reversal of 111120543 is 345021111.

111120543 is a `hidden beast` number, since 1 + 1 + 1 + 120 + 543 = 666.

It is not a de Polignac number, because 111120543 - 2¹⁸ = 110858399 is a prime.

It is a super-2 number, since 2×111120543² = 24695550153229698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120533) 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, 18433 + ... + 23706.

It is an arithmetic number, because the mean of its divisors is an integer number (13421590).

Almost surely, 2^111120543 is an apocalyptic number.

111120543 is a deficient number, since it is larger than the sum of its proper divisors (49938537).

111120543 is a wasteful number, since it uses less digits than its factorization.

111120543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42438 (or 42435 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 111120543 is about 10541.3729181734. The cubic root of 111120543 is about 480.7634595219.

Adding to 111120543 its reverse (345021111), we get a palindrome (456141654).

The spelling of 111120543 in words is "one hundred eleven million, one hundred twenty thousand, five hundred forty-three".