131342238018 has 16 divisors (see below), whose sum is σ = 291871640160. Its totient is φ = 43780745988.

The previous prime is 131342237959. The next prime is 131342238031. The reversal of 131342238018 is 810832243131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216131780 + ... + 1216131887.

It is an arithmetic number, because the mean of its divisors is an integer number (18241977510).

Almost surely, 2^131342238018 is an apocalyptic number.

131342238018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

131342238018 is an abundant number, since it is smaller than the sum of its proper divisors (160529402142).

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

131342238018 is a wasteful number, since it uses less digits than its factorization.

131342238018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432263678 (or 2432263672 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 131342238018 in words is "one hundred thirty-one billion, three hundred forty-two million, two hundred thirty-eight thousand, eighteen".