11055111 has 16 divisors (see below), whose sum is σ = 15676416. Its totient is φ = 6914336.

The previous prime is 11055089. The next prime is 11055113. The reversal of 11055111 is 11155011.

It is a cyclic number.

It is not a de Polignac number, because 11055111 - 2²² = 6860807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11055113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2146 + ... + 5168.

It is an arithmetic number, because the mean of its divisors is an integer number (979776).

Almost surely, 2^11055111 is an apocalyptic number.

11055111 is a deficient number, since it is larger than the sum of its proper divisors (4621305).

11055111 is a wasteful number, since it uses less digits than its factorization.

11055111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102.

The product of its (nonzero) digits is 25, while the sum is 15.

The square root of 11055111 is about 3324.9227058685. The cubic root of 11055111 is about 222.7688019238.

It can be divided in two parts, 1105 and 5111, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 11055111 in words is "eleven million, fifty-five thousand, one hundred eleven".