131232321330 has 128 divisors (see below), whose sum is σ = 349689332736. Its totient is φ = 31250553600.

The previous prime is 131232321329. The next prime is 131232321343. The reversal of 131232321330 is 33123232131.

It is a self number, because there is not a number n which added to its sum of digits gives 131232321330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16643569 + ... + 16651451.

It is an arithmetic number, because the mean of its divisors is an integer number (2731947912).

Almost surely, 2^131232321330 is an apocalyptic number.

131232321330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131232321330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174844666368).

131232321330 is an abundant number, since it is smaller than the sum of its proper divisors (218457011406).

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

131232321330 is a wasteful number, since it uses less digits than its factorization.

131232321330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8792.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 131232321330 its reverse (33123232131), we get a palindrome (164355553461).

The spelling of 131232321330 in words is "one hundred thirty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, three hundred thirty".