131108350220 has 96 divisors (see below), whose sum is σ = 286820352000. Its totient is φ = 50287104000.

The previous prime is 131108350213. The next prime is 131108350271. The reversal of 131108350220 is 22053801131.

It is a self number, because there is not a number n which added to its sum of digits gives 131108350220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42033821 + ... + 42036939.

It is an arithmetic number, because the mean of its divisors is an integer number (2987712000).

Almost surely, 2^131108350220 is an apocalyptic number.

131108350220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131108350220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143410176000).

131108350220 is an abundant number, since it is smaller than the sum of its proper divisors (155712001780).

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

131108350220 is a wasteful number, since it uses less digits than its factorization.

131108350220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759 (or 3757 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 131108350220 in words is "one hundred thirty-one billion, one hundred eight million, three hundred fifty thousand, two hundred twenty".