112123545543 has 120 divisors (see below), whose sum is σ = 185082868080. Its totient is φ = 67390617600.

The previous prime is 112123545493. The next prime is 112123545551. The reversal of 112123545543 is 345545321211.

112123545543 is a `hidden beast` number, since 1 + 1 + 212 + 354 + 55 + 43 = 666.

It is not a de Polignac number, because 112123545543 - 2²⁹ = 111586674631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112123545498 and 112123545507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112123545593) 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 119 ways as a sum of consecutive naturals, for example, 136569073 + ... + 136569893.

It is an arithmetic number, because the mean of its divisors is an integer number (1542357234).

Almost surely, 2^112123545543 is an apocalyptic number.

112123545543 is a deficient number, since it is larger than the sum of its proper divisors (72959322537).

112123545543 is an equidigital number, since it uses as much as digits as its factorization.

112123545543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 941 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 112123545543 its reverse (345545321211), we get a palindrome (457668866754).

The spelling of 112123545543 in words is "one hundred twelve billion, one hundred twenty-three million, five hundred forty-five thousand, five hundred forty-three".