131230240344 has 160 divisors (see below), whose sum is σ = 422210875680. Its totient is φ = 37303773696.

The previous prime is 131230240313. The next prime is 131230240369. The reversal of 131230240344 is 443042032131.

131230240344 is a `hidden beast` number, since 1 + 3 + 12 + 302 + 4 + 0 + 344 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 820164 + ... + 967020.

It is an arithmetic number, because the mean of its divisors is an integer number (2638817973).

Almost surely, 2^131230240344 is an apocalyptic number.

131230240344 is a gapful number since it is divisible by the number (14) 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 131230240344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211105437840).

131230240344 is an abundant number, since it is smaller than the sum of its proper divisors (290980635336).

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

131230240344 is a wasteful number, since it uses less digits than its factorization.

131230240344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147079 (or 147066 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 131230240344 its reverse (443042032131), we get a palindrome (574272272475).

The spelling of 131230240344 in words is "one hundred thirty-one billion, two hundred thirty million, two hundred forty thousand, three hundred forty-four".