131053235144 has 128 divisors (see below), whose sum is σ = 282516595200. Its totient is φ = 56458321920.

The previous prime is 131053235143. The next prime is 131053235153. The reversal of 131053235144 is 441532350131.

It is a self number, because there is not a number n which added to its sum of digits gives 131053235144.

It is not an unprimeable number, because it can be changed into a prime (131053235143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139864244 + ... + 139865180.

It is an arithmetic number, because the mean of its divisors is an integer number (2207160900).

Almost surely, 2^131053235144 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 131053235144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141258297600).

131053235144 is an abundant number, since it is smaller than the sum of its proper divisors (151463360056).

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

131053235144 is a wasteful number, since it uses less digits than its factorization.

131053235144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1539 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 131053235144 its reverse (441532350131), we get a palindrome (572585585275).

The spelling of 131053235144 in words is "one hundred thirty-one billion, fifty-three million, two hundred thirty-five thousand, one hundred forty-four".