131324521525 has 12 divisors (see below), whose sum is σ = 162878360832. Its totient is φ = 105036421040.

The previous prime is 131324521511. The next prime is 131324521543. The reversal of 131324521525 is 525125423131.

It is not a de Polignac number, because 131324521525 - 2³¹ = 129177037877 is a prime.

It is a super-2 number, since 2×131324521525² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463957 + ... + 691306.

It is an arithmetic number, because the mean of its divisors is an integer number (13573196736).

Almost surely, 2^131324521525 is an apocalyptic number.

It is an amenable number.

131324521525 is a deficient number, since it is larger than the sum of its proper divisors (31553839307).

131324521525 is a wasteful number, since it uses less digits than its factorization.

131324521525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159820 (or 1159815 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

Adding to 131324521525 its reverse (525125423131), we get a palindrome (656449944656).

The spelling of 131324521525 in words is "one hundred thirty-one billion, three hundred twenty-four million, five hundred twenty-one thousand, five hundred twenty-five".