111705055111111 has 16 divisors (see below), whose sum is σ = 139325787947520. Its totient is φ = 87007182706080.

The previous prime is 111705055111093. The next prime is 111705055111123. The reversal of 111705055111111 is 111111550507111.

It is a happy number.

It is not a de Polignac number, because 111705055111111 - 2⁷ = 111705055110983 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 (111705055111211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297455971 + ... + 297831268.

It is an arithmetic number, because the mean of its divisors is an integer number (8707861746720).

Almost surely, 2^{111705055111111} is an apocalyptic number.

111705055111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111705055111111 is a deficient number, since it is larger than the sum of its proper divisors (27620732836409).

111705055111111 is a wasteful number, since it uses less digits than its factorization.

111705055111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595289694.

The product of its (nonzero) digits is 875, while the sum is 31.

The spelling of 111705055111111 in words is "one hundred eleven trillion, seven hundred five billion, fifty-five million, one hundred eleven thousand, one hundred eleven".