1105055111 has 4 divisors (see below), whose sum is σ = 1118369112. Its totient is φ = 1091741112.

The previous prime is 1105055101. The next prime is 1105055129. The reversal of 1105055111 is 1115505011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1115505011 = 43 ⋅25941977.

It is a cyclic number.

It is not a de Polignac number, because 1105055111 - 2¹⁰ = 1105054087 is a prime.

It is a super-2 number, since 2×1105055111² = 2442293596694444642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105055101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6656876 + ... + 6657041.

It is an arithmetic number, because the mean of its divisors is an integer number (279592278).

Almost surely, 2^1105055111 is an apocalyptic number.

1105055111 is a deficient number, since it is larger than the sum of its proper divisors (13314001).

1105055111 is an equidigital number, since it uses as much as digits as its factorization.

1105055111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13314000.

The product of its (nonzero) digits is 125, while the sum is 20.

The square root of 1105055111 is about 33242.3692146032. The cubic root of 1105055111 is about 1033.8589994761.

The spelling of 1105055111 in words is "one billion, one hundred five million, fifty-five thousand, one hundred eleven".