111711084017 has 4 divisors (see below), whose sum is σ = 120304244340. Its totient is φ = 103117923696.

The previous prime is 111711083999. The next prime is 111711084073. The reversal of 111711084017 is 710480117111.

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 49531173136 + 62179910881 = 222556^2 + 249359^2 .

It is a cyclic number.

It is not a de Polignac number, because 111711084017 - 2¹⁶ = 111711018481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111711024017) 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, 4296580142 + ... + 4296580167.

It is an arithmetic number, because the mean of its divisors is an integer number (30076061085).

Almost surely, 2^111711084017 is an apocalyptic number.

It is an amenable number.

111711084017 is a deficient number, since it is larger than the sum of its proper divisors (8593160323).

111711084017 is an equidigital number, since it uses as much as digits as its factorization.

111711084017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593160322.

The product of its (nonzero) digits is 1568, while the sum is 32.

The spelling of 111711084017 in words is "one hundred eleven billion, seven hundred eleven million, eighty-four thousand, seventeen".