131104325421209 has 4 divisors (see below), whose sum is σ = 149833514767104. Its totient is φ = 112375136075316.

The previous prime is 131104325421137. The next prime is 131104325421227. The reversal of 131104325421209 is 902124523401131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131104325421209 - 2²⁸ = 131104056985753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131104325421109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9364594672937 + ... + 9364594672950.

It is an arithmetic number, because the mean of its divisors is an integer number (37458378691776).

Almost surely, 2^{131104325421209} is an apocalyptic number.

It is an amenable number.

131104325421209 is a deficient number, since it is larger than the sum of its proper divisors (18729189345895).

131104325421209 is an equidigital number, since it uses as much as digits as its factorization.

131104325421209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18729189345894.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 131104325421209 in words is "one hundred thirty-one trillion, one hundred four billion, three hundred twenty-five million, four hundred twenty-one thousand, two hundred nine".