12131316315 has 12 divisors (see below), whose sum is σ = 21027615024. Its totient is φ = 6470035344.

The previous prime is 12131316313. The next prime is 12131316317. The reversal of 12131316315 is 51361313121.

It is a happy number.

12131316315 is a `hidden beast` number, since 1 + 2 + 1 + 31 + 316 + 315 = 666.

12131316315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12131316313) and next prime (12131316317).

It is not a de Polignac number, because 12131316315 - 2¹ = 12131316313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131316313) 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 11 ways as a sum of consecutive naturals, for example, 134792359 + ... + 134792448.

It is an arithmetic number, because the mean of its divisors is an integer number (1752301252).

Almost surely, 2^12131316315 is an apocalyptic number.

12131316315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12131316315 is a deficient number, since it is larger than the sum of its proper divisors (8896298709).

12131316315 is a wasteful number, since it uses less digits than its factorization.

12131316315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269584818 (or 269584815 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

Adding to 12131316315 its reverse (51361313121), we get a palindrome (63492629436).

The spelling of 12131316315 in words is "twelve billion, one hundred thirty-one million, three hundred sixteen thousand, three hundred fifteen".