11011101055 has 4 divisors (see below), whose sum is σ = 13213321272. Its totient is φ = 8808880840.

The previous prime is 11011101047. The next prime is 11011101077. The reversal of 11011101055 is 55010111011.

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

It is not a de Polignac number, because 11011101055 - 2³ = 11011101047 is a prime.

It is a super-2 number, since 2×11011101055² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101110101 + ... + 1101110110.

It is an arithmetic number, because the mean of its divisors is an integer number (3303330318).

Almost surely, 2^11011101055 is an apocalyptic number.

11011101055 is a deficient number, since it is larger than the sum of its proper divisors (2202220217).

11011101055 is an equidigital number, since it uses as much as digits as its factorization.

11011101055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202220216.

The product of its (nonzero) digits is 25, while the sum is 16.

Adding to 11011101055 its reverse (55010111011), we get a palindrome (66021212066).

The spelling of 11011101055 in words is "eleven billion, eleven million, one hundred one thousand, fifty-five".