11001111109 has 4 divisors (see below), whose sum is σ = 11140365760. Its totient is φ = 10861856460.

The previous prime is 11001111101. The next prime is 11001111119. The reversal of 11001111109 is 90111110011.

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 11001111109 - 2³ = 11001111101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001111092 and 11001111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001111101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69627207 + ... + 69627364.

It is an arithmetic number, because the mean of its divisors is an integer number (2785091440).

Almost surely, 2^11001111109 is an apocalyptic number.

It is an amenable number.

11001111109 is a deficient number, since it is larger than the sum of its proper divisors (139254651).

11001111109 is an equidigital number, since it uses as much as digits as its factorization.

11001111109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139254650.

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

The spelling of 11001111109 in words is "eleven billion, one million, one hundred eleven thousand, one hundred nine".