131331050444 has 96 divisors (see below), whose sum is σ = 259836595200. Its totient is φ = 57568642560.

The previous prime is 131331050381. The next prime is 131331050447. The reversal of 131331050444 is 444050133131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131331050447) 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, 126400877 + ... + 126401915.

It is an arithmetic number, because the mean of its divisors is an integer number (2706631200).

Almost surely, 2^131331050444 is an apocalyptic number.

It is an amenable number.

131331050444 is a deficient number, since it is larger than the sum of its proper divisors (128505544756).

131331050444 is a wasteful number, since it uses less digits than its factorization.

131331050444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 131331050444 its reverse (444050133131), we get a palindrome (575381183575).

The spelling of 131331050444 in words is "one hundred thirty-one billion, three hundred thirty-one million, fifty thousand, four hundred forty-four".