111101101011 has 112 divisors (see below), whose sum is σ = 189625881600. Its totient is φ = 64629944064.

The previous prime is 111101101009. The next prime is 111101101039. The reversal of 111101101011 is 110101101111.

It is not a de Polignac number, because 111101101011 - 2¹ = 111101101009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111101100984 and 111101101002.

It is not an unprimeable number, because it can be changed into a prime (111101101211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 11061930 + ... + 11071968.

Almost surely, 2^111101101011 is an apocalyptic number.

111101101011 is a deficient number, since it is larger than the sum of its proper divisors (78524780589).

111101101011 is a wasteful number, since it uses less digits than its factorization.

111101101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140 (or 10125 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111101101011 its reverse (110101101111), we get a palindrome (221202202122).

The spelling of 111101101011 in words is "one hundred eleven billion, one hundred one million, one hundred one thousand, eleven".