12318102194 has 8 divisors (see below), whose sum is σ = 18485789868. Its totient is φ = 6156172240.

The previous prime is 12318102193. The next prime is 12318102217. The reversal of 12318102194 is 49120181321.

It can be written as a sum of positive squares in 2 ways, for example, as 12196330969 + 121771225 = 110437^2 + 11035^2 .

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

It is a super-2 number, since 2×12318102194² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12318102194.

It is not an unprimeable number, because it can be changed into a prime (12318102193) 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, 1434077 + ... + 1442640.

Almost surely, 2^12318102194 is an apocalyptic number.

12318102194 is a deficient number, since it is larger than the sum of its proper divisors (6167687674).

12318102194 is a wasteful number, since it uses less digits than its factorization.

12318102194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878860.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 12318102194 in words is "twelve billion, three hundred eighteen million, one hundred two thousand, one hundred ninety-four".