131323011220209 has 8 divisors (see below), whose sum is σ = 176902475596000. Its totient is φ = 86646110495616.

The previous prime is 131323011220189. The next prime is 131323011220223. The reversal of 131323011220209 is 902022110323131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-131323011220209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131323011220259) 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, 225640912459 + ... + 225640913040.

It is an arithmetic number, because the mean of its divisors is an integer number (22112809449500).

Almost surely, 2^{131323011220209} is an apocalyptic number.

It is an amenable number.

131323011220209 is a deficient number, since it is larger than the sum of its proper divisors (45579464375791).

131323011220209 is an equidigital number, since it uses as much as digits as its factorization.

131323011220209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451281825599.

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 131323011220209 in words is "one hundred thirty-one trillion, three hundred twenty-three billion, eleven million, two hundred twenty thousand, two hundred nine".