11111010109 has 4 divisors (see below), whose sum is σ = 11111437600. Its totient is φ = 11110582620.

The previous prime is 11111010103. The next prime is 11111010143. The reversal of 11111010109 is 90101011111.

11111010109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11111010109 - 2⁵ = 11111010077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111010092 and 11111010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111010103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172047 + ... + 227644.

It is an arithmetic number, because the mean of its divisors is an integer number (2777859400).

Almost surely, 2^11111010109 is an apocalyptic number.

It is an amenable number.

11111010109 is a deficient number, since it is larger than the sum of its proper divisors (427491).

11111010109 is an equidigital number, since it uses as much as digits as its factorization.

11111010109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427490.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 11111010109 in words is "eleven billion, one hundred eleven million, ten thousand, one hundred nine".