111101011011009 has 40 divisors (see below), whose sum is σ = 168001831839072. Its totient is φ = 73159045464960.

The previous prime is 111101011010987. The next prime is 111101011011037. The reversal of 111101011011009 is 900110110101111.

It is not a de Polignac number, because 111101011011009 - 2⁷ = 111101011010881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111101011010982 and 111101011011000.

It is not an unprimeable number, because it can be changed into a prime (111101011011209) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29150889 + ... + 32741049.

Almost surely, 2^{111101011011009} is an apocalyptic number.

It is an amenable number.

111101011011009 is a deficient number, since it is larger than the sum of its proper divisors (56900820828063).

111101011011009 is an equidigital number, since it uses as much as digits as its factorization.

111101011011009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594859 (or 3594850 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 18.

The spelling of 111101011011009 in words is "one hundred eleven trillion, one hundred one billion, eleven million, eleven thousand, nine".