131132343320 has 128 divisors (see below), whose sum is σ = 343101312000. Its totient is φ = 44602721280.

The previous prime is 131132343311. The next prime is 131132343389. The reversal of 131132343320 is 23343231131.

It is a self number, because there is not a number n which added to its sum of digits gives 131132343320.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 561164 + ... + 759716.

It is an arithmetic number, because the mean of its divisors is an integer number (2680479000).

Almost surely, 2^131132343320 is an apocalyptic number.

131132343320 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 131132343320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171550656000).

131132343320 is an abundant number, since it is smaller than the sum of its proper divisors (211968968680).

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

131132343320 is a wasteful number, since it uses less digits than its factorization.

131132343320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198673 (or 198669 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 131132343320 its reverse (23343231131), we get a palindrome (154475574451).

The spelling of 131132343320 in words is "one hundred thirty-one billion, one hundred thirty-two million, three hundred forty-three thousand, three hundred twenty".