131324404 has 12 divisors (see below), whose sum is σ = 229912228. Its totient is φ = 65635200.

The previous prime is 131324387. The next prime is 131324423. The reversal of 131324404 is 404423131.

131324404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37234404 + 94090000 = 6102^2 + 9700^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7564 + ... + 17884.

Almost surely, 2^131324404 is an apocalyptic number.

It is an amenable number.

131324404 is a deficient number, since it is larger than the sum of its proper divisors (98587824).

131324404 is a wasteful number, since it uses less digits than its factorization.

131324404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13506 (or 13504 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 131324404 is about 11459.6860340936. The cubic root of 131324404 is about 508.2941906854.

Adding to 131324404 its reverse (404423131), we get a palindrome (535747535).

The spelling of 131324404 in words is "one hundred thirty-one million, three hundred twenty-four thousand, four hundred four".