131042340520 has 128 divisors (see below), whose sum is σ = 370292832000. Its totient is φ = 41472684288.

The previous prime is 131042340503. The next prime is 131042340563. The reversal of 131042340520 is 25043240131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188994 + ... + 545713.

It is an arithmetic number, because the mean of its divisors is an integer number (2892912750).

Almost surely, 2^131042340520 is an apocalyptic number.

131042340520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131042340520 is an abundant number, since it is smaller than the sum of its proper divisors (239250491480).

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

131042340520 is a wasteful number, since it uses less digits than its factorization.

131042340520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734752 (or 734734 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 131042340520 its reverse (25043240131), we get a palindrome (156085580651).

The spelling of 131042340520 in words is "one hundred thirty-one billion, forty-two million, three hundred forty thousand, five hundred twenty".