11111111109927 has 16 divisors (see below), whose sum is σ = 16843717102080. Its totient is φ = 7235142117336.

The previous prime is 11111111109911. The next prime is 11111111109929. The reversal of 11111111109927 is 72990111111111.

It is not a de Polignac number, because 11111111109927 - 2⁴ = 11111111109911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11111111109891 and 11111111109900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111111109929) 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, 4785145743 + ... + 4785148064.

It is an arithmetic number, because the mean of its divisors is an integer number (1052732318880).

Almost surely, 2^{11111111109927} is an apocalyptic number.

11111111109927 is a deficient number, since it is larger than the sum of its proper divisors (5732605992153).

11111111109927 is an equidigital number, since it uses as much as digits as its factorization.

11111111109927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9570293859 (or 9570293853 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 36.

The spelling of 11111111109927 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred nine thousand, nine hundred twenty-seven".