1105871911 has 4 divisors (see below), whose sum is σ = 1111485672. Its totient is φ = 1100258152.

The previous prime is 1105871863. The next prime is 1105871939. The reversal of 1105871911 is 1191785011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1191785011 = 2311 ⋅515701.

It is a cyclic number.

It is not a de Polignac number, because 1105871911 - 2¹⁵ = 1105839143 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 (1105871971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2806585 + ... + 2806978.

It is an arithmetic number, because the mean of its divisors is an integer number (277871418).

Almost surely, 2^1105871911 is an apocalyptic number.

1105871911 is a deficient number, since it is larger than the sum of its proper divisors (5613761).

1105871911 is an equidigital number, since it uses as much as digits as its factorization.

1105871911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613760.

The product of its (nonzero) digits is 2520, while the sum is 34.

The square root of 1105871911 is about 33254.6524714964. The cubic root of 1105871911 is about 1034.1136619052.

The spelling of 1105871911 in words is "one billion, one hundred five million, eight hundred seventy-one thousand, nine hundred eleven".