131324444424 has 64 divisors (see below), whose sum is σ = 368401968000. Its totient is φ = 43341393600.

The previous prime is 131324444417. The next prime is 131324444437. The reversal of 131324444424 is 424444423131.

It is a super-2 number, since 2×131324444424² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 2988004 + ... + 3031635.

It is an arithmetic number, because the mean of its divisors is an integer number (5756280750).

Almost surely, 2^131324444424 is an apocalyptic number.

It is an amenable number.

131324444424 is an abundant number, since it is smaller than the sum of its proper divisors (237077523576).

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

131324444424 is a wasteful number, since it uses less digits than its factorization.

131324444424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6019755 (or 6019745 counting only the distinct ones).

The product of its digits is 147456, while the sum is 36.

Adding to 131324444424 its reverse (424444423131), we get a palindrome (555768867555).

The spelling of 131324444424 in words is "one hundred thirty-one billion, three hundred twenty-four million, four hundred forty-four thousand, four hundred twenty-four".