11011120989 has 8 divisors (see below), whose sum is σ = 16016176032. Its totient is φ = 6673406640.

The previous prime is 11011120987. The next prime is 11011120997. The reversal of 11011120989 is 98902111011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11011120989 - 2¹ = 11011120987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 333670333 = 11011120989 / (1 + 1 + 0 + 1 + 1 + 1 + 2 + 0 + 9 + 8 + 9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011120987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166835134 + ... + 166835199.

It is an arithmetic number, because the mean of its divisors is an integer number (2002022004).

Almost surely, 2^11011120989 is an apocalyptic number.

It is an amenable number.

11011120989 is a deficient number, since it is larger than the sum of its proper divisors (5005055043).

11011120989 is a wasteful number, since it uses less digits than its factorization.

11011120989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333670347.

The product of its (nonzero) digits is 1296, while the sum is 33.

The spelling of 11011120989 in words is "eleven billion, eleven million, one hundred twenty thousand, nine hundred eighty-nine".