13131111112112 has 40 divisors (see below), whose sum is σ = 29552688021792. Its totient is φ = 5535362995200.

The previous prime is 13131111112111. The next prime is 13131111112127. The reversal of 13131111112112 is 21121111113131.

It is not an unprimeable number, because it can be changed into a prime (13131111112111) 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, 960993689 + ... + 961007352.

Almost surely, 2^{13131111112112} is an apocalyptic number.

It is an amenable number.

13131111112112 is an abundant number, since it is smaller than the sum of its proper divisors (16421576909680).

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

13131111112112 is a wasteful number, since it uses less digits than its factorization.

13131111112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922001117 (or 1922001111 counting only the distinct ones).

The product of its digits is 36, while the sum is 20.

Adding to 13131111112112 its reverse (21121111113131), we get a palindrome (34252222225243).

The spelling of 13131111112112 in words is "thirteen trillion, one hundred thirty-one billion, one hundred eleven million, one hundred twelve thousand, one hundred twelve".