131320664573 has 16 divisors (see below), whose sum is σ = 152461492224. Its totient is φ = 110778125040.

The previous prime is 131320664561. The next prime is 131320664581. The reversal of 131320664573 is 375466023131.

It is a cyclic number.

It is not a de Polignac number, because 131320664573 - 2⁶ = 131320664509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131320664573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320664173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381008 + ... + 638598.

It is an arithmetic number, because the mean of its divisors is an integer number (9528843264).

Almost surely, 2^131320664573 is an apocalyptic number.

It is an amenable number.

131320664573 is a deficient number, since it is larger than the sum of its proper divisors (21140827651).

131320664573 is a wasteful number, since it uses less digits than its factorization.

131320664573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258752.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 131320664573 in words is "one hundred thirty-one billion, three hundred twenty million, six hundred sixty-four thousand, five hundred seventy-three".