131342240011220 has 96 divisors (see below), whose sum is σ = 322397323584000. Its totient is φ = 44927624996352.

The previous prime is 131342240011217. The next prime is 131342240011243. The reversal of 131342240011220 is 22110042243131.

It is a happy number.

It is a super-2 number, since 2×131342240011220² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131342240011220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19138280 + ... + 25079039.

It is an arithmetic number, because the mean of its divisors is an integer number (3358305454000).

Almost surely, 2^{131342240011220} is an apocalyptic number.

131342240011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131342240011220 is an abundant number, since it is smaller than the sum of its proper divisors (191055083572780).

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

131342240011220 is a wasteful number, since it uses less digits than its factorization.

131342240011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44217782 (or 44217766 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 131342240011220 its reverse (22110042243131), we get a palindrome (153452282254351).

The spelling of 131342240011220 in words is "one hundred thirty-one trillion, three hundred forty-two billion, two hundred forty million, eleven thousand, two hundred twenty".