131324531224 has 8 divisors (see below), whose sum is σ = 246233496060. Its totient is φ = 65662265608.

The previous prime is 131324531203. The next prime is 131324531263. The reversal of 131324531224 is 422135423131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×131324531224² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8207783194 + ... + 8207783209.

Almost surely, 2^131324531224 is an apocalyptic number.

It is an amenable number.

131324531224 is a deficient number, since it is larger than the sum of its proper divisors (114908964836).

131324531224 is a wasteful number, since it uses less digits than its factorization.

131324531224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16415566409 (or 16415566405 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

Adding to 131324531224 its reverse (422135423131), we get a palindrome (553459954355).

The spelling of 131324531224 in words is "one hundred thirty-one billion, three hundred twenty-four million, five hundred thirty-one thousand, two hundred twenty-four".