111056106105061 has 4 divisors (see below), whose sum is σ = 119598883497772. Its totient is φ = 102513328712352.

The previous prime is 111056106105013. The next prime is 111056106105067. The reversal of 111056106105061 is 160501601650111.

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 20486033822500 + 90570072282561 = 4526150^2 + 9516831^2 .

It is a cyclic number.

It is not a de Polignac number, because 111056106105061 - 2¹⁹ = 111056105580773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111056106105067) 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, 4271388696336 + ... + 4271388696361.

It is an arithmetic number, because the mean of its divisors is an integer number (29899720874443).

Almost surely, 2^{111056106105061} is an apocalyptic number.

It is an amenable number.

111056106105061 is a deficient number, since it is larger than the sum of its proper divisors (8542777392711).

111056106105061 is an equidigital number, since it uses as much as digits as its factorization.

111056106105061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8542777392710.

The product of its (nonzero) digits is 5400, while the sum is 34.

Adding to 111056106105061 its reverse (160501601650111), we get a palindrome (271557707755172).

The spelling of 111056106105061 in words is "one hundred eleven trillion, fifty-six billion, one hundred six million, one hundred five thousand, sixty-one".