131055524220 has 144 divisors (see below), whose sum is σ = 378255437280. Its totient is φ = 33899593728.

The previous prime is 131055524209. The next prime is 131055524221. The reversal of 131055524220 is 22425550131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131055524221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14995692 + ... + 15004428.

It is an arithmetic number, because the mean of its divisors is an integer number (2626773870).

Almost surely, 2^131055524220 is an apocalyptic number.

131055524220 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 131055524220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189127718640).

131055524220 is an abundant number, since it is smaller than the sum of its proper divisors (247199913060).

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

131055524220 is a wasteful number, since it uses less digits than its factorization.

131055524220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8944 (or 8889 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

It can be divided in two parts, 131055 and 524220, that multiplied together give a square (68701652100 = 262110²).

The spelling of 131055524220 in words is "one hundred thirty-one billion, fifty-five million, five hundred twenty-four thousand, two hundred twenty".