131131243144 has 64 divisors (see below), whose sum is σ = 282996633600. Its totient is φ = 56336673600.

The previous prime is 131131243141. The next prime is 131131243151. The reversal of 131131243144 is 441342131131.

It is not an unprimeable number, because it can be changed into a prime (131131243141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629649 + ... + 811615.

It is an arithmetic number, because the mean of its divisors is an integer number (4421822400).

Almost surely, 2^131131243144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131131243144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141498316800).

131131243144 is an abundant number, since it is smaller than the sum of its proper divisors (151865390456).

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

131131243144 is a wasteful number, since it uses less digits than its factorization.

131131243144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182434 (or 182430 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

Adding to 131131243144 its reverse (441342131131), we get a palindrome (572473374275).

The spelling of 131131243144 in words is "one hundred thirty-one billion, one hundred thirty-one million, two hundred forty-three thousand, one hundred forty-four".