131344425141220 has 96 divisors (see below), whose sum is σ = 284065511992416. Its totient is φ = 50981711155200.

The previous prime is 131344425141211. The next prime is 131344425141227. The reversal of 131344425141220 is 22141524443131.

It can be written as a sum of positive squares in 16 ways, for example, as 22798199364516 + 108546225776704 = 4774746^2 + 10418552^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131344425141220.

It is not an unprimeable number, because it can be changed into a prime (131344425141227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 578361214 + ... + 578588266.

It is an arithmetic number, because the mean of its divisors is an integer number (2959015749921).

Almost surely, 2^{131344425141220} is an apocalyptic number.

131344425141220 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 131344425141220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142032755996208).

131344425141220 is an abundant number, since it is smaller than the sum of its proper divisors (152721086851196).

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

131344425141220 is a wasteful number, since it uses less digits than its factorization.

131344425141220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230881 (or 230879 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 131344425141220 its reverse (22141524443131), we get a palindrome (153485949584351).

The spelling of 131344425141220 in words is "one hundred thirty-one trillion, three hundred forty-four billion, four hundred twenty-five million, one hundred forty-one thousand, two hundred twenty".