131345351532220 has 96 divisors (see below), whose sum is σ = 325404901785600. Its totient is φ = 43579035313920.

The previous prime is 131345351532193. The next prime is 131345351532221. The reversal of 131345351532220 is 22235153543131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131345351532221) 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, 205035981 + ... + 205675579.

It is an arithmetic number, because the mean of its divisors is an integer number (3389634393600).

Almost surely, 2^{131345351532220} is an apocalyptic number.

131345351532220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131345351532220 is an abundant number, since it is smaller than the sum of its proper divisors (194059550253380).

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

131345351532220 is a wasteful number, since it uses less digits than its factorization.

131345351532220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686963 (or 686961 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 131345351532220 in words is "one hundred thirty-one trillion, three hundred forty-five billion, three hundred fifty-one million, five hundred thirty-two thousand, two hundred twenty".