111055561101 has 12 divisors (see below), whose sum is σ = 160448242812. Its totient is φ = 74021046336.

The previous prime is 111055561079. The next prime is 111055561121. The reversal of 111055561101 is 101165550111.

111055561101 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 5 + 556 + 1 + 101 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23255945001 + 87799616100 = 152499^2 + 296310^2 .

It is not a de Polignac number, because 111055561101 - 2²⁷ = 110921343373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111055561121) 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, 1288816 + ... + 1372281.

It is an arithmetic number, because the mean of its divisors is an integer number (13370686901).

Almost surely, 2^111055561101 is an apocalyptic number.

It is an amenable number.

111055561101 is a deficient number, since it is larger than the sum of its proper divisors (49392681711).

111055561101 is a wasteful number, since it uses less digits than its factorization.

111055561101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665740 (or 2665737 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 27.

The spelling of 111055561101 in words is "one hundred eleven billion, fifty-five million, five hundred sixty-one thousand, one hundred one".