131320224404 has 12 divisors (see below), whose sum is σ = 233577776628. Its totient is φ = 64583716800.

The previous prime is 131320224397. The next prime is 131320224407. The reversal of 131320224404 is 404422023131.

It can be written as a sum of positive squares in 2 ways, for example, as 15242371600 + 116077852804 = 123460^2 + 340702^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320224407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 269098577 + ... + 269099064.

It is an arithmetic number, because the mean of its divisors is an integer number (19464814719).

Almost surely, 2^131320224404 is an apocalyptic number.

It is an amenable number.

131320224404 is a deficient number, since it is larger than the sum of its proper divisors (102257552224).

131320224404 is a wasteful number, since it uses less digits than its factorization.

131320224404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538197706 (or 538197704 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 131320224404 its reverse (404422023131), we get a palindrome (535742247535).

The spelling of 131320224404 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred twenty-four thousand, four hundred four".