131720759334 has 108 divisors (see below), whose sum is σ = 300769668108. Its totient is φ = 43205497200.

The previous prime is 131720759293. The next prime is 131720759369. The reversal of 131720759334 is 433957027131.

131720759334 is a `hidden beast` number, since 1 + 3 + 1 + 7 + 20 + 7 + 593 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 131720759334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 808102737 + ... + 808102899.

Almost surely, 2^131720759334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131720759334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150384834054).

131720759334 is an abundant number, since it is smaller than the sum of its proper divisors (169048908774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131720759334 is an frugal number, since it uses more digits than its factorization.

131720759334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 131720759334 in words is "one hundred thirty-one billion, seven hundred twenty million, seven hundred fifty-nine thousand, three hundred thirty-four".