131320623217 has 16 divisors (see below), whose sum is σ = 151984800000. Its totient is φ = 111140047872.

The previous prime is 131320623209. The next prime is 131320623223. The reversal of 131320623217 is 712326023131.

It is not a de Polignac number, because 131320623217 - 2³ = 131320623209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131320620217) 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, 107592 + ... + 523657.

It is an arithmetic number, because the mean of its divisors is an integer number (9499050000).

Almost surely, 2^131320623217 is an apocalyptic number.

It is an amenable number.

131320623217 is a deficient number, since it is larger than the sum of its proper divisors (20664176783).

131320623217 is a wasteful number, since it uses less digits than its factorization.

131320623217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631632.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 131320623217 its reverse (712326023131), we get a palindrome (843646646348).

The spelling of 131320623217 in words is "one hundred thirty-one billion, three hundred twenty million, six hundred twenty-three thousand, two hundred seventeen".