131112331344 has 80 divisors (see below), whose sum is σ = 376412237440. Its totient is φ = 43695832320.

The previous prime is 131112331327. The next prime is 131112331379. The reversal of 131112331344 is 443133211131.

131112331344 is a `hidden beast` number, since 1 + 311 + 1 + 2 + 3 + 3 + 1 + 344 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2514789 + ... + 2566395.

It is an arithmetic number, because the mean of its divisors is an integer number (4705152968).

Almost surely, 2^131112331344 is an apocalyptic number.

It is an amenable number.

131112331344 is an abundant number, since it is smaller than the sum of its proper divisors (245299906096).

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

131112331344 is a wasteful number, since it uses less digits than its factorization.

131112331344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57505 (or 57493 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 131112331344 its reverse (443133211131), we get a palindrome (574245542475).

The spelling of 131112331344 in words is "one hundred thirty-one billion, one hundred twelve million, three hundred thirty-one thousand, three hundred forty-four".