131133220000 has 120 divisors (see below), whose sum is σ = 322865165700. Its totient is φ = 52411392000.

The previous prime is 131133219989. The next prime is 131133220021. The reversal of 131133220000 is 22331131.

It can be written as a sum of positive squares in 10 ways, for example, as 11093144976 + 120040075024 = 105324^2 + 346468^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41378416 + ... + 41381584.

Almost surely, 2^131133220000 is an apocalyptic number.

131133220000 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 131133220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161432582850).

131133220000 is an abundant number, since it is smaller than the sum of its proper divisors (191731945700).

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

131133220000 is an equidigital number, since it uses as much as digits as its factorization.

131133220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268 (or 5245 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 131133220000 its reverse (22331131), we get a palindrome (131155551131).

The spelling of 131133220000 in words is "one hundred thirty-one billion, one hundred thirty-three million, two hundred twenty thousand".