12323135394 has 20 divisors (see below), whose sum is σ = 27612951894. Its totient is φ = 4107711744.

The previous prime is 12323135299. The next prime is 12323135399. The reversal of 12323135394 is 49353132321.

12323135394 is a `hidden beast` number, since 1 + 2 + 3 + 231 + 35 + 394 = 666.

12323135394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7818980625 + 4504154769 = 88425^2 + 67113^2 .

It is not an unprimeable number, because it can be changed into a prime (12323135399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38034207 + ... + 38034530.

Almost surely, 2^12323135394 is an apocalyptic number.

12323135394 is an abundant number, since it is smaller than the sum of its proper divisors (15289816500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12323135394 is an equidigital number, since it uses as much as digits as its factorization.

12323135394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76068751 (or 76068742 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The spelling of 12323135394 in words is "twelve billion, three hundred twenty-three million, one hundred thirty-five thousand, three hundred ninety-four".