131113112 has 32 divisors (see below), whose sum is σ = 280324800. Its totient is φ = 56953344.

The previous prime is 131113111. The next prime is 131113123. The reversal of 131113112 is 211311131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131113111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35312 + ... + 38847.

It is an arithmetic number, because the mean of its divisors is an integer number (8760150).

Almost surely, 2^131113112 is an apocalyptic number.

It is an amenable number.

131113112 is an abundant number, since it is smaller than the sum of its proper divisors (149211688).

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

131113112 is a wasteful number, since it uses less digits than its factorization.

131113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74195 (or 74191 counting only the distinct ones).

The product of its digits is 18, while the sum is 14.

The square root of 131113112 is about 11450.4633967364. The cubic root of 131113112 is about 508.0214408046.

Adding to 131113112 its reverse (211311131), we get a palindrome (342424243).

The spelling of 131113112 in words is "one hundred thirty-one million, one hundred thirteen thousand, one hundred twelve".