131320204200420 has 96 divisors (see below), whose sum is σ = 368607311815680. Its totient is φ = 34931999034240.

The previous prime is 131320204200401. The next prime is 131320204200511. The reversal of 131320204200420 is 24002402023131.

It is a happy number.

131320204200420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131320204200420² (a number of 29 digits) contains 22 as substring.

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, 285939175 + ... + 286398065.

It is an arithmetic number, because the mean of its divisors is an integer number (3839659498080).

Almost surely, 2^{131320204200420} is an apocalyptic number.

131320204200420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131320204200420 is an abundant number, since it is smaller than the sum of its proper divisors (237287107615260).

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

131320204200420 is a wasteful number, since it uses less digits than its factorization.

131320204200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470705 (or 470703 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 131320204200420 its reverse (24002402023131), we get a palindrome (155322606223551).

The spelling of 131320204200420 in words is "one hundred thirty-one trillion, three hundred twenty billion, two hundred four million, two hundred thousand, four hundred twenty".