131343220041020 has 96 divisors (see below), whose sum is σ = 301995738495360. Its totient is φ = 47690001515520.

The previous prime is 131343220041013. The next prime is 131343220041041. The reversal of 131343220041020 is 20140022343131.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1964327 + ... + 16326206.

It is an arithmetic number, because the mean of its divisors is an integer number (3145788942660).

Almost surely, 2^{131343220041020} is an apocalyptic number.

131343220041020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131343220041020 is an abundant number, since it is smaller than the sum of its proper divisors (170652518454340).

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

131343220041020 is a wasteful number, since it uses less digits than its factorization.

131343220041020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18291015 (or 18291013 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131343220041020 its reverse (20140022343131), we get a palindrome (151483242384151).

The spelling of 131343220041020 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred twenty million, forty-one thousand, twenty".