131205324 has 24 divisors (see below), whose sum is σ = 306928048. Its totient is φ = 43623360.

The previous prime is 131205323. The next prime is 131205359. The reversal of 131205324 is 423502131.

131205324 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 131205324.

It is not an unprimeable number, because it can be changed into a prime (131205323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9007 + ... + 18534.

Almost surely, 2^131205324 is an apocalyptic number.

It is an amenable number.

131205324 is an abundant number, since it is smaller than the sum of its proper divisors (175722724).

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

131205324 is a wasteful number, since it uses less digits than its factorization.

131205324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27945 (or 27943 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 131205324 is about 11454.4892509444. The cubic root of 131205324 is about 508.1405102464.

Adding to 131205324 its reverse (423502131), we get a palindrome (554707455).

The spelling of 131205324 in words is "one hundred thirty-one million, two hundred five thousand, three hundred twenty-four".