131333555040020 has 24 divisors (see below), whose sum is σ = 277229483548584. Its totient is φ = 52261228118016.

The previous prime is 131333555040007. The next prime is 131333555040071. The reversal of 131333555040020 is 20040555333131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3618874647556 + 127714680392464 = 1902334^2 + 11301092^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17012114669 + ... + 17012122388.

It is an arithmetic number, because the mean of its divisors is an integer number (11551228481191).

Almost surely, 2^{131333555040020} is an apocalyptic number.

131333555040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131333555040020 is an abundant number, since it is smaller than the sum of its proper divisors (145895928508564).

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

131333555040020 is a wasteful number, since it uses less digits than its factorization.

131333555040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34024237259 (or 34024237257 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 131333555040020 in words is "one hundred thirty-one trillion, three hundred thirty-three billion, five hundred fifty-five million, forty thousand, twenty".