131141220410209 has 4 divisors (see below), whose sum is σ = 131299412474260. Its totient is φ = 130983028346160.

The previous prime is 131141220410069. The next prime is 131141220410219. The reversal of 131141220410209 is 902014022141131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86922337936225 + 44218882473984 = 9323215^2 + 6649728^2 .

It is a cyclic number.

It is not a de Polignac number, because 131141220410209 - 2⁹ = 131141220409697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131141220410219) 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, 79096030782 + ... + 79096032439.

It is an arithmetic number, because the mean of its divisors is an integer number (32824853118565).

Almost surely, 2^{131141220410209} is an apocalyptic number.

It is an amenable number.

131141220410209 is a deficient number, since it is larger than the sum of its proper divisors (158192064051).

131141220410209 is an equidigital number, since it uses as much as digits as its factorization.

131141220410209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158192064050.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 131141220410209 in words is "one hundred thirty-one trillion, one hundred forty-one billion, two hundred twenty million, four hundred ten thousand, two hundred nine".