131046342840 has 288 divisors, whose sum is σ = 516977678880. Its totient is φ = 28651037184.

The previous prime is 131046342793. The next prime is 131046342857. The reversal of 131046342840 is 48243640131.

131046342840 is a `hidden beast` number, since 1 + 3 + 10 + 4 + 634 + 2 + 8 + 4 + 0 = 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 = 131046342795 and 131046342804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 244222 + ... + 567218.

It is an arithmetic number, because the mean of its divisors is an integer number (1795061385).

Almost surely, 2^131046342840 is an apocalyptic number.

131046342840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131046342840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258488839440).

131046342840 is an abundant number, since it is smaller than the sum of its proper divisors (385931336040).

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

131046342840 is a wasteful number, since it uses less digits than its factorization.

131046342840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323051 (or 323037 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Adding to 131046342840 its reverse (48243640131), we get a palindrome (179289982971).

The spelling of 131046342840 in words is "one hundred thirty-one billion, forty-six million, three hundred forty-two thousand, eight hundred forty".