131204221130204 has 12 divisors (see below), whose sum is σ = 229608685558224. Its totient is φ = 65601739542144.

The previous prime is 131204221130161. The next prime is 131204221130209. The reversal of 131204221130204 is 402031122402131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131204221130209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91959317 + ... + 93375180.

It is an arithmetic number, because the mean of its divisors is an integer number (19134057129852).

Almost surely, 2^{131204221130204} is an apocalyptic number.

It is an amenable number.

131204221130204 is a deficient number, since it is larger than the sum of its proper divisors (98404464428020).

131204221130204 is a wasteful number, since it uses less digits than its factorization.

131204221130204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185511484 (or 185511482 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 131204221130204 its reverse (402031122402131), we get a palindrome (533235343532335).

The spelling of 131204221130204 in words is "one hundred thirty-one trillion, two hundred four billion, two hundred twenty-one million, one hundred thirty thousand, two hundred four".