9918122113 has 8 divisors (see below), whose sum is σ = 10776907520. Its totient is φ = 9093014640.

The previous prime is 9918122033. The next prime is 9918122147. The reversal of 9918122113 is 3112218199.

9918122113 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9918122113 - 2³³ = 1328187521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9918122153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8418870 + ... + 8420047.

It is an arithmetic number, because the mean of its divisors is an integer number (1347113440).

Almost surely, 2^9918122113 is an apocalyptic number.

It is an amenable number.

9918122113 is a deficient number, since it is larger than the sum of its proper divisors (858785407).

9918122113 is a wasteful number, since it uses less digits than its factorization.

9918122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16838967.

The product of its digits is 7776, while the sum is 37.

The square root of 9918122113 is about 99589.7691181178. The cubic root of 9918122113 is about 2148.5385498450.

The spelling of 9918122113 in words is "nine billion, nine hundred eighteen million, one hundred twenty-two thousand, one hundred thirteen".