12312040113 has 24 divisors (see below), whose sum is σ = 17977489920. Its totient is φ = 8119235040.

The previous prime is 12312040057. The next prime is 12312040127. The reversal of 12312040113 is 31104021321.

12312040113 is a `hidden beast` number, since 1 + 231 + 20 + 401 + 13 = 666.

It is not a de Polignac number, because 12312040113 - 2³⁰ = 11238298289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12312040313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287695 + ... + 327707.

It is an arithmetic number, because the mean of its divisors is an integer number (749062080).

Almost surely, 2^12312040113 is an apocalyptic number.

It is an amenable number.

12312040113 is a deficient number, since it is larger than the sum of its proper divisors (5665449807).

12312040113 is a wasteful number, since it uses less digits than its factorization.

12312040113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40389 (or 40386 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12312040113 its reverse (31104021321), we get a palindrome (43416061434).

The spelling of 12312040113 in words is "twelve billion, three hundred twelve million, forty thousand, one hundred thirteen".