131320310112 has 72 divisors (see below), whose sum is σ = 379771708680. Its totient is φ = 43031508480.

The previous prime is 131320310089. The next prime is 131320310117. The reversal of 131320310112 is 211013023131.

131320310112 is a `hidden beast` number, since 1 + 31 + 320 + 310 + 1 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320310117) 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, 3847189 + ... + 3881172.

It is an arithmetic number, because the mean of its divisors is an integer number (5274607065).

Almost surely, 2^131320310112 is an apocalyptic number.

131320310112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131320310112 is an abundant number, since it is smaller than the sum of its proper divisors (248451398568).

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

131320310112 is a wasteful number, since it uses less digits than its factorization.

131320310112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728436 (or 7728425 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131320310112 its reverse (211013023131), we get a palindrome (342333333243).

The spelling of 131320310112 in words is "one hundred thirty-one billion, three hundred twenty million, three hundred ten thousand, one hundred twelve".