131142344403204 has 18 divisors (see below), whose sum is σ = 331498703908190. Its totient is φ = 43714114801056.

The previous prime is 131142344403157. The next prime is 131142344403209. The reversal of 131142344403204 is 402304443241131.

131142344403204 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 4 + 2 + 3 + 4 + 440 + 3 + 204 = 666.

It can be written as a sum of positive squares in only one way, i.e., 67850804865600 + 63291539537604 = 8237160^2 + 7955598^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3642842900089 = 131142344403204 / (1 + 3 + 1 + 1 + 4 + 2 + 3 + 4 + 4 + 4 + 0 + 3 + 2 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (131142344403209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1821421450009 + ... + 1821421450080.

Almost surely, 2^{131142344403204} is an apocalyptic number.

It is an amenable number.

131142344403204 is an abundant number, since it is smaller than the sum of its proper divisors (200356359504986).

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

131142344403204 is a wasteful number, since it uses less digits than its factorization.

131142344403204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642842900099 (or 3642842900094 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 131142344403204 its reverse (402304443241131), we get a palindrome (533446787644335).

The spelling of 131142344403204 in words is "one hundred thirty-one trillion, one hundred forty-two billion, three hundred forty-four million, four hundred three thousand, two hundred four".