12318032109 has 16 divisors (see below), whose sum is σ = 16815281472. Its totient is φ = 8016613248.

The previous prime is 12318032093. The next prime is 12318032113. The reversal of 12318032109 is 90123081321.

It is not a de Polignac number, because 12318032109 - 2⁴ = 12318032093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318032189) 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, 216697 + ... + 267569.

It is an arithmetic number, because the mean of its divisors is an integer number (1050955092).

Almost surely, 2^12318032109 is an apocalyptic number.

It is an amenable number.

12318032109 is a deficient number, since it is larger than the sum of its proper divisors (4497249363).

12318032109 is a wasteful number, since it uses less digits than its factorization.

12318032109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52796.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 12318032109 in words is "twelve billion, three hundred eighteen million, thirty-two thousand, one hundred nine".