12318441599 has 4 divisors (see below), whose sum is σ = 12320286600. Its totient is φ = 12316596600.

The previous prime is 12318441557. The next prime is 12318441613. The reversal of 12318441599 is 99514481321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99514481321 = 28723 ⋅3464627.

It is a cyclic number.

It is not a de Polignac number, because 12318441599 - 2²⁴ = 12301664383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318441539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912449 + ... + 925850.

It is an arithmetic number, because the mean of its divisors is an integer number (3080071650).

Almost surely, 2^12318441599 is an apocalyptic number.

12318441599 is a deficient number, since it is larger than the sum of its proper divisors (1845001).

12318441599 is an equidigital number, since it uses as much as digits as its factorization.

12318441599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845000.

The product of its digits is 311040, while the sum is 47.

The spelling of 12318441599 in words is "twelve billion, three hundred eighteen million, four hundred forty-one thousand, five hundred ninety-nine".