131342242220320 has 24 divisors (see below), whose sum is σ = 310296047245884. Its totient is φ = 52536896888064.

The previous prime is 131342242220251. The next prime is 131342242220333. The reversal of 131342242220320 is 23022242243131.

It can be written as a sum of positive squares in 2 ways, for example, as 128663376768144 + 2678865452176 = 11342988^2 + 1636724^2 .

It is a super-2 number, since 2×131342242220320² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410444506779 + ... + 410444507098.

Almost surely, 2^{131342242220320} is an apocalyptic number.

131342242220320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131342242220320 is an abundant number, since it is smaller than the sum of its proper divisors (178953805025564).

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

131342242220320 is an equidigital number, since it uses as much as digits as its factorization.

131342242220320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820889013892 (or 820889013884 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 131342242220320 its reverse (23022242243131), we get a palindrome (154364484463451).

The spelling of 131342242220320 in words is "one hundred thirty-one trillion, three hundred forty-two billion, two hundred forty-two million, two hundred twenty thousand, three hundred twenty".