131571838943 has 4 divisors (see below), whose sum is σ = 131573066760. Its totient is φ = 131570611128.

The previous prime is 131571838841. The next prime is 131571838949. The reversal of 131571838943 is 349838175131.

It is a happy number.

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 131571838943 - 2¹⁰ = 131571837919 is a prime.

It is a super-3 number, since 3×131571838943³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131571838949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435980 + ... + 673217.

It is an arithmetic number, because the mean of its divisors is an integer number (32893266690).

Almost surely, 2^131571838943 is an apocalyptic number.

131571838943 is a deficient number, since it is larger than the sum of its proper divisors (1227817).

131571838943 is a wasteful number, since it uses less digits than its factorization.

131571838943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227816.

The product of its digits is 2177280, while the sum is 53.

The spelling of 131571838943 in words is "one hundred thirty-one billion, five hundred seventy-one million, eight hundred thirty-eight thousand, nine hundred forty-three".