13131122316 has 48 divisors (see below), whose sum is σ = 33800954208. Its totient is φ = 3941798400.

The previous prime is 13131122287. The next prime is 13131122317. The reversal of 13131122316 is 61322113131.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13131122317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020115 + ... + 1032906.

It is an arithmetic number, because the mean of its divisors is an integer number (704186546).

Almost surely, 2^13131122316 is an apocalyptic number.

It is an amenable number.

13131122316 is an abundant number, since it is smaller than the sum of its proper divisors (20669831892).

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

13131122316 is a wasteful number, since it uses less digits than its factorization.

13131122316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053082 (or 2053080 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

Adding to 13131122316 its reverse (61322113131), we get a palindrome (74453235447).

The spelling of 13131122316 in words is "thirteen billion, one hundred thirty-one million, one hundred twenty-two thousand, three hundred sixteen".