131343510871 has 4 divisors (see below), whose sum is σ = 132377711872. Its totient is φ = 130309309872.

The previous prime is 131343510869. The next prime is 131343510899. The reversal of 131343510871 is 178015343131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131343510871 - 2¹ = 131343510869 is a prime.

It is a super-2 number, since 2×131343510871² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131343510871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343510811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517100310 + ... + 517100563.

It is an arithmetic number, because the mean of its divisors is an integer number (33094427968).

Almost surely, 2^131343510871 is an apocalyptic number.

131343510871 is a deficient number, since it is larger than the sum of its proper divisors (1034201001).

131343510871 is a wasteful number, since it uses less digits than its factorization.

131343510871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034201000.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 131343510871 in words is "one hundred thirty-one billion, three hundred forty-three million, five hundred ten thousand, eight hundred seventy-one".