111223543105 has 8 divisors (see below), whose sum is σ = 134844213672. Its totient is φ = 88061526528.

The previous prime is 111223543087. The next prime is 111223543111. The reversal of 111223543105 is 501345322111.

It can be written as a sum of positive squares in 4 ways, for example, as 12195005761 + 99028537344 = 110431^2 + 314688^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111223543105 - 2⁵ = 111223543073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114662962 + ... + 114663931.

It is an arithmetic number, because the mean of its divisors is an integer number (16855526709).

Almost surely, 2^111223543105 is an apocalyptic number.

It is an amenable number.

111223543105 is a deficient number, since it is larger than the sum of its proper divisors (23620670567).

111223543105 is an equidigital number, since it uses as much as digits as its factorization.

111223543105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229326995.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 111223543105 its reverse (501345322111), we get a palindrome (612568865216).

The spelling of 111223543105 in words is "one hundred eleven billion, two hundred twenty-three million, five hundred forty-three thousand, one hundred five".