131320276317 has 24 divisors (see below), whose sum is σ = 192746571264. Its totient is φ = 86144576544.

The previous prime is 131320276279. The next prime is 131320276319. The reversal of 131320276317 is 713672023131.

131320276317 is a `hidden beast` number, since 1 + 3 + 13 + 2 + 0 + 2 + 7 + 631 + 7 = 666.

It is not a de Polignac number, because 131320276317 - 2¹⁰ = 131320275293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320276319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305613 + ... + 596690.

It is an arithmetic number, because the mean of its divisors is an integer number (8031107136).

Almost surely, 2^131320276317 is an apocalyptic number.

It is an amenable number.

131320276317 is a deficient number, since it is larger than the sum of its proper divisors (61426294947).

131320276317 is a wasteful number, since it uses less digits than its factorization.

131320276317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902569 (or 902566 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

Adding to 131320276317 its reverse (713672023131), we get a palindrome (844992299448).

The spelling of 131320276317 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred seventy-six thousand, three hundred seventeen".