8989121113 has 4 divisors (see below), whose sum is σ = 10273281280. Its totient is φ = 7704960948.

The previous prime is 8989121111. The next prime is 8989121117. The reversal of 8989121113 is 3111219898.

8989121113 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 8989121113 - 2¹ = 8989121111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8989121113.

It is not an unprimeable number, because it can be changed into a prime (8989121111) 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, 642080073 + ... + 642080086.

It is an arithmetic number, because the mean of its divisors is an integer number (2568320320).

Almost surely, 2^8989121113 is an apocalyptic number.

It is an amenable number.

8989121113 is a deficient number, since it is larger than the sum of its proper divisors (1284160167).

8989121113 is a wasteful number, since it uses less digits than its factorization.

8989121113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284160166.

The product of its digits is 31104, while the sum is 43.

The square root of 8989121113 is about 94810.9756990192. The cubic root of 8989121113 is about 2079.2453741369.

The spelling of 8989121113 in words is "eight billion, nine hundred eighty-nine million, one hundred twenty-one thousand, one hundred thirteen".