131104320 has 112 divisors (see below), whose sum is σ = 427622208. Its totient is φ = 34007040.

The previous prime is 131104307. The next prime is 131104339. The reversal of 131104320 is 23401131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 131104320.

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 15 ways as a sum of consecutive naturals, for example, 33675 + ... + 37365.

Almost surely, 2^131104320 is an apocalyptic number.

131104320 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 131104320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213811104).

131104320 is an abundant number, since it is smaller than the sum of its proper divisors (296517888).

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

131104320 is a wasteful number, since it uses less digits than its factorization.

131104320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748 (or 3738 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131104320 is about 11450.0794757067. The cubic root of 131104320 is about 508.0100851533.

Adding to 131104320 its reverse (23401131), we get a palindrome (154505451).

The spelling of 131104320 in words is "one hundred thirty-one million, one hundred four thousand, three hundred twenty".