111656141101 has 4 divisors (see below), whose sum is σ = 112090601052. Its totient is φ = 111221681152.

The previous prime is 111656141099. The next prime is 111656141137. The reversal of 111656141101 is 101141656111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86613078601 + 25043062500 = 294301^2 + 158250^2 .

It is a cyclic number.

It is not a de Polignac number, because 111656141101 - 2¹ = 111656141099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111656141101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111656141801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217229590 + ... + 217230103.

It is an arithmetic number, because the mean of its divisors is an integer number (28022650263).

Almost surely, 2^111656141101 is an apocalyptic number.

It is an amenable number.

111656141101 is a deficient number, since it is larger than the sum of its proper divisors (434459951).

111656141101 is an equidigital number, since it uses as much as digits as its factorization.

111656141101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434459950.

The product of its (nonzero) digits is 720, while the sum is 28.

Adding to 111656141101 its reverse (101141656111), we get a palindrome (212797797212).

The spelling of 111656141101 in words is "one hundred eleven billion, six hundred fifty-six million, one hundred forty-one thousand, one hundred one".