131543342320 has 80 divisors (see below), whose sum is σ = 329424665472. Its totient is φ = 48560947200.

The previous prime is 131543342297. The next prime is 131543342327. The reversal of 131543342320 is 23243345131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131543342327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9127120 + ... + 9141520.

Almost surely, 2^131543342320 is an apocalyptic number.

131543342320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131543342320 is an abundant number, since it is smaller than the sum of its proper divisors (197881323152).

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

131543342320 is a wasteful number, since it uses less digits than its factorization.

131543342320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23210 (or 23204 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 131543342320 its reverse (23243345131), we get a palindrome (154786687451).

The spelling of 131543342320 in words is "one hundred thirty-one billion, five hundred forty-three million, three hundred forty-two thousand, three hundred twenty".