11111101101011 has 8 divisors (see below), whose sum is σ = 11151608488800. Its totient is φ = 11070596556288.

The previous prime is 11111101100971. The next prime is 11111101101047. The reversal of 11111101101011 is 11010110111111.

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 11111101101011 - 2³⁰ = 11110027359187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11111101100983 and 11111101101001.

It is not an unprimeable number, because it can be changed into a prime (11111101151011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7283315 + ... + 8675763.

It is an arithmetic number, because the mean of its divisors is an integer number (1393951061100).

Almost surely, 2^{11111101101011} is an apocalyptic number.

11111101101011 is a deficient number, since it is larger than the sum of its proper divisors (40507387789).

11111101101011 is a wasteful number, since it uses less digits than its factorization.

11111101101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421533.

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

Adding to 11111101101011 its reverse (11010110111111), we get a palindrome (22121211212122).

The spelling of 11111101101011 in words is "eleven trillion, one hundred eleven billion, one hundred one million, one hundred one thousand, eleven".