1105511111105 has 8 divisors (see below), whose sum is σ = 1327794652032. Its totient is φ = 883621343088.

The previous prime is 1105511111093. The next prime is 1105511111161. The reversal of 1105511111105 is 5011111155011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1105511111105 - 2²⁶ = 1105444002241 is a prime.

It is a super-2 number, since 2×1105511111105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98437049 + ... + 98448278.

It is an arithmetic number, because the mean of its divisors is an integer number (165974331504).

Almost surely, 2^{1105511111105} is an apocalyptic number.

It is an amenable number.

1105511111105 is a deficient number, since it is larger than the sum of its proper divisors (222283540927).

1105511111105 is a wasteful number, since it uses less digits than its factorization.

1105511111105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196886455.

The product of its (nonzero) digits is 125, while the sum is 23.

Adding to 1105511111105 its reverse (5011111155011), we get a palindrome (6116622266116).

The spelling of 1105511111105 in words is "one trillion, one hundred five billion, five hundred eleven million, one hundred eleven thousand, one hundred five".