11111011101009 has 32 divisors (see below), whose sum is σ = 16813497024000. Its totient is φ = 7249713968592.

The previous prime is 11111011101007. The next prime is 11111011101053. The reversal of 11111011101009 is 90010111011111.

It is not a de Polignac number, because 11111011101009 - 2¹ = 11111011101007 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11111011100982 and 11111011101000.

It is not an unprimeable number, because it can be changed into a prime (11111011101007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15001599 + ... + 15724820.

It is an arithmetic number, because the mean of its divisors is an integer number (525421782000).

Almost surely, 2^{11111011101009} is an apocalyptic number.

It is an amenable number.

11111011101009 is a deficient number, since it is larger than the sum of its proper divisors (5702485922991).

11111011101009 is a wasteful number, since it uses less digits than its factorization.

11111011101009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30726714 (or 30726708 counting only the distinct ones).

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

The spelling of 11111011101009 in words is "eleven trillion, one hundred eleven billion, eleven million, one hundred one thousand, nine".