12131316316 has 36 divisors (see below), whose sum is σ = 24926739768. Its totient is φ = 5150536608.

The previous prime is 12131316313. The next prime is 12131316317. The reversal of 12131316316 is 61361313121.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131316313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268255 + ... + 310198.

It is an arithmetic number, because the mean of its divisors is an integer number (692409438).

Almost surely, 2^12131316316 is an apocalyptic number.

It is an amenable number.

12131316316 is an abundant number, since it is smaller than the sum of its proper divisors (12795423452).

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

12131316316 is a wasteful number, since it uses less digits than its factorization.

12131316316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578578 (or 578569 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

Adding to 12131316316 its reverse (61361313121), we get a palindrome (73492629437).

The spelling of 12131316316 in words is "twelve billion, one hundred thirty-one million, three hundred sixteen thousand, three hundred sixteen".