131310993834566 has 32 divisors (see below), whose sum is σ = 242712721554240. Its totient is φ = 51884543799936.

The previous prime is 131310993834481. The next prime is 131310993834613. The reversal of 131310993834566 is 665438399013131.

It is a junction number, because it is equal to n+sod(n) for n = 131310993834499 and 131310993834508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435005321 + ... + 435307076.

It is an arithmetic number, because the mean of its divisors is an integer number (7584772548570).

Almost surely, 2^{131310993834566} is an apocalyptic number.

131310993834566 is a deficient number, since it is larger than the sum of its proper divisors (111401727719674).

131310993834566 is a wasteful number, since it uses less digits than its factorization.

131310993834566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870313248.

The product of its (nonzero) digits is 37791360, while the sum is 62.

The spelling of 131310993834566 in words is "one hundred thirty-one trillion, three hundred ten billion, nine hundred ninety-three million, eight hundred thirty-four thousand, five hundred sixty-six".