13131322112312 has 32 divisors (see below), whose sum is σ = 24774586636800. Its totient is φ = 6524816457600.

The previous prime is 13131322112299. The next prime is 13131322112317. The reversal of 13131322112312 is 21321122313131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131322112317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103864 + ... + 5242247.

It is an arithmetic number, because the mean of its divisors is an integer number (774205832400).

Almost surely, 2^{13131322112312} is an apocalyptic number.

It is an amenable number.

13131322112312 is a deficient number, since it is larger than the sum of its proper divisors (11643264524488).

13131322112312 is a wasteful number, since it uses less digits than its factorization.

13131322112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347727 (or 6347723 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

Adding to 13131322112312 its reverse (21321122313131), we get a palindrome (34452444425443).

The spelling of 13131322112312 in words is "thirteen trillion, one hundred thirty-one billion, three hundred twenty-two million, one hundred twelve thousand, three hundred twelve".