131311143144 has 80 divisors (see below), whose sum is σ = 367874073600. Its totient is φ = 43760707488.

The previous prime is 131311143127. The next prime is 131311143179. The reversal of 131311143144 is 441341113131.

131311143144 is a `hidden beast` number, since 1 + 31 + 311 + 1 + 4 + 314 + 4 = 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 an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3289497 + ... + 3329175.

It is an arithmetic number, because the mean of its divisors is an integer number (4598425920).

Almost surely, 2^131311143144 is an apocalyptic number.

It is an amenable number.

131311143144 is an abundant number, since it is smaller than the sum of its proper divisors (236562930456).

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

131311143144 is a wasteful number, since it uses less digits than its factorization.

131311143144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44804 (or 44791 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 131311143144 its reverse (441341113131), we get a palindrome (572652256275).

The spelling of 131311143144 in words is "one hundred thirty-one billion, three hundred eleven million, one hundred forty-three thousand, one hundred forty-four".