11111011100111 has 8 divisors (see below), whose sum is σ = 11984371515984. Its totient is φ = 10240317434880.

The previous prime is 11111011100087. The next prime is 11111011100221. The reversal of 11111011100111 is 11100111011111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11111011100111 - 2²⁶ = 11110943991247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111011100092 and 11111011100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111011100311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666679001 + ... + 666695666.

It is an arithmetic number, because the mean of its divisors is an integer number (1498046439498).

Almost surely, 2^{11111011100111} is an apocalyptic number.

11111011100111 is a deficient number, since it is larger than the sum of its proper divisors (873360415873).

11111011100111 is a wasteful number, since it uses less digits than its factorization.

11111011100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333375321.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 11111011100111 its reverse (11100111011111), we get a palindrome (22211122111222).

The spelling of 11111011100111 in words is "eleven trillion, one hundred eleven billion, eleven million, one hundred thousand, one hundred eleven".