131709320488 has 8 divisors (see below), whose sum is σ = 246954975930. Its totient is φ = 65854660240.

The previous prime is 131709320473. The next prime is 131709320549. The reversal of 131709320488 is 884023907131.

131709320488 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 101440976004 + 30268344484 = 318498^2 + 173978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8231832523 + ... + 8231832538.

Almost surely, 2^131709320488 is an apocalyptic number.

It is an amenable number.

131709320488 is a deficient number, since it is larger than the sum of its proper divisors (115245655442).

131709320488 is a wasteful number, since it uses less digits than its factorization.

131709320488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16463665067 (or 16463665063 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 131709320488 in words is "one hundred thirty-one billion, seven hundred nine million, three hundred twenty thousand, four hundred eighty-eight".