12318115989 has 16 divisors (see below), whose sum is σ = 16468490304. Its totient is φ = 8189942400.

The previous prime is 12318115981. The next prime is 12318116023. The reversal of 12318115989 is 98951181321.

It is not a de Polignac number, because 12318115989 - 2³ = 12318115981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318115981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1848187 + ... + 1854839.

It is an arithmetic number, because the mean of its divisors is an integer number (1029280644).

Almost surely, 2^12318115989 is an apocalyptic number.

It is an amenable number.

12318115989 is a deficient number, since it is larger than the sum of its proper divisors (4150374315).

12318115989 is an equidigital number, since it uses as much as digits as its factorization.

12318115989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8228.

The product of its digits is 155520, while the sum is 48.

The spelling of 12318115989 in words is "twelve billion, three hundred eighteen million, one hundred fifteen thousand, nine hundred eighty-nine".