11111110111011 has 8 divisors (see below), whose sum is σ = 15458935806720. Its totient is φ = 7085345577992.

The previous prime is 11111110111009. The next prime is 11111110111067. The reversal of 11111110111011 is 11011101111111.

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

It is a cyclic number.

It is not a de Polignac number, because 11111110111011 - 2¹ = 11111110111009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111110111081) 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, 80515290591 + ... + 80515290728.

It is an arithmetic number, because the mean of its divisors is an integer number (1932366975840).

Almost surely, 2^{11111110111011} is an apocalyptic number.

11111110111011 is a deficient number, since it is larger than the sum of its proper divisors (4347825695709).

11111110111011 is a wasteful number, since it uses less digits than its factorization.

11111110111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161030581345.

The product of its (nonzero) digits is 1, while the sum is 12.

Adding to 11111110111011 its reverse (11011101111111), we get a palindrome (22122211222122).

It can be divided in two parts, 11111 and 110111011, that multiplied together give a palindrome (1223443443221).

The spelling of 11111110111011 in words is "eleven trillion, one hundred eleven billion, one hundred ten million, one hundred eleven thousand, eleven".