105711105511 has 4 divisors (see below), whose sum is σ = 115321206024. Its totient is φ = 96101005000.

The previous prime is 105711105503. The next prime is 105711105541. The reversal of 105711105511 is 115501117501.

It is a happy number.

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

It is not a de Polignac number, because 105711105511 - 2³ = 105711105503 is a prime.

It is a super-2 number, since 2×105711105511² (a number of 23 digits) contains 22 as substring.

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 105711105511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105711105541) 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, 4805050240 + ... + 4805050261.

It is an arithmetic number, because the mean of its divisors is an integer number (28830301506).

Almost surely, 2^105711105511 is an apocalyptic number.

105711105511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

105711105511 is a deficient number, since it is larger than the sum of its proper divisors (9610100513).

105711105511 is an equidigital number, since it uses as much as digits as its factorization.

105711105511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9610100512.

The product of its (nonzero) digits is 875, while the sum is 28.

The spelling of 105711105511 in words is "one hundred five billion, seven hundred eleven million, one hundred five thousand, five hundred eleven".