11111101000109 has 32 divisors (see below), whose sum is σ = 12858377011200. Its totient is φ = 9488932611840.

The previous prime is 11111101000099. The next prime is 11111101000121. The reversal of 11111101000109 is 90100010111111.

It is a de Polignac number, because none of the positive numbers 2^k-11111101000109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111101009109) 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, 640068572 + ... + 640085930.

It is an arithmetic number, because the mean of its divisors is an integer number (401824281600).

Almost surely, 2^{11111101000109} is an apocalyptic number.

It is an amenable number.

11111101000109 is a deficient number, since it is larger than the sum of its proper divisors (1747276011091).

11111101000109 is a wasteful number, since it uses less digits than its factorization.

11111101000109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23633.

The product of its (nonzero) digits is 9, while the sum is 17.

The spelling of 11111101000109 in words is "eleven trillion, one hundred eleven billion, one hundred one million, one hundred nine", and thus it is an aban number.