131342442231440 has 80 divisors (see below), whose sum is σ = 333133983614016. Its totient is φ = 47760631564800.

The previous prime is 131342442231401. The next prime is 131342442231461. The reversal of 131342442231440 is 44132244243131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131342442231394 and 131342442231403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258512855 + ... + 259020425.

Almost surely, 2^{131342442231440} is an apocalyptic number.

131342442231440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131342442231440 is an abundant number, since it is smaller than the sum of its proper divisors (201791541382576).

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

131342442231440 is a wasteful number, since it uses less digits than its factorization.

131342442231440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801648 (or 801642 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 131342442231440 its reverse (44132244243131), we get a palindrome (175474686474571).

The spelling of 131342442231440 in words is "one hundred thirty-one trillion, three hundred forty-two billion, four hundred forty-two million, two hundred thirty-one thousand, four hundred forty".