131503240344240 has 320 divisors, whose sum is σ = 482705704857600. Its totient is φ = 32829177148416.

The previous prime is 131503240344199. The next prime is 131503240344253. The reversal of 131503240344240 is 42443042305131.

131503240344240 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 0 + 3 + 2 + 403 + 4 + 4 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 131503240344195 and 131503240344204.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25824675 + ... + 30494594.

It is an arithmetic number, because the mean of its divisors is an integer number (1508455327680).

Almost surely, 2^{131503240344240} is an apocalyptic number.

131503240344240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131503240344240 is an abundant number, since it is smaller than the sum of its proper divisors (351202464513360).

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

131503240344240 is a wasteful number, since it uses less digits than its factorization.

131503240344240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56319361 (or 56319349 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 131503240344240 its reverse (42443042305131), we get a palindrome (173946282649371).

The spelling of 131503240344240 in words is "one hundred thirty-one trillion, five hundred three billion, two hundred forty million, three hundred forty-four thousand, two hundred forty".