11111042055 has 16 divisors (see below), whose sum is σ = 18550609920. Its totient is φ = 5668241568.

The previous prime is 11111042039. The next prime is 11111042071. The reversal of 11111042055 is 55024011111.

It is an interprime number because it is at equal distance from previous prime (11111042039) and next prime (11111042071).

It is not a de Polignac number, because 11111042055 - 2⁴ = 11111042039 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16102615 + ... + 16103304.

It is an arithmetic number, because the mean of its divisors is an integer number (1159413120).

Almost surely, 2^11111042055 is an apocalyptic number.

11111042055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11111042055 is a deficient number, since it is larger than the sum of its proper divisors (7439567865).

11111042055 is a wasteful number, since it uses less digits than its factorization.

11111042055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32205950.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 11111042055 its reverse (55024011111), we get a palindrome (66135053166).

The spelling of 11111042055 in words is "eleven billion, one hundred eleven million, forty-two thousand, fifty-five".