1105961111 has 4 divisors (see below), whose sum is σ = 1106767992. Its totient is φ = 1105154232.

The previous prime is 1105961099. The next prime is 1105961137. The reversal of 1105961111 is 1111695011.

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

It is a cyclic number.

It is not a de Polignac number, because 1105961111 - 2⁶ = 1105961047 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 (1105961411) 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, 401381 + ... + 404126.

It is an arithmetic number, because the mean of its divisors is an integer number (276691998).

Almost surely, 2^1105961111 is an apocalyptic number.

1105961111 is a deficient number, since it is larger than the sum of its proper divisors (806881).

1105961111 is an equidigital number, since it uses as much as digits as its factorization.

1105961111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806880.

The product of its (nonzero) digits is 270, while the sum is 26.

The square root of 1105961111 is about 33255.9936101750. The cubic root of 1105961111 is about 1034.1414651428.

The spelling of 1105961111 in words is "one billion, one hundred five million, nine hundred sixty-one thousand, one hundred eleven".