11011112109 has 64 divisors (see below), whose sum is σ = 17910720000. Its totient is φ = 6654735360.

The previous prime is 11011112071. The next prime is 11011112113. The reversal of 11011112109 is 90121111011.

It is not a de Polignac number, because 11011112109 - 2¹⁵ = 11011079341 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11011112091 and 11011112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011113109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7972599 + ... + 7973979.

It is an arithmetic number, because the mean of its divisors is an integer number (279855000).

Almost surely, 2^11011112109 is an apocalyptic number.

It is an amenable number.

11011112109 is a deficient number, since it is larger than the sum of its proper divisors (6899607891).

11011112109 is a wasteful number, since it uses less digits than its factorization.

11011112109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035 (or 2029 counting only the distinct ones).

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

The spelling of 11011112109 in words is "eleven billion, eleven million, one hundred twelve thousand, one hundred nine".