131104365500 has 96 divisors (see below), whose sum is σ = 303534241920. Its totient is φ = 49298457600.

The previous prime is 131104365487. The next prime is 131104365533. The reversal of 131104365500 is 5563401131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7530806 + ... + 7548194.

It is an arithmetic number, because the mean of its divisors is an integer number (3161815020).

Almost surely, 2^131104365500 is an apocalyptic number.

131104365500 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 131104365500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151767120960).

131104365500 is an abundant number, since it is smaller than the sum of its proper divisors (172429876420).

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

131104365500 is a wasteful number, since it uses less digits than its factorization.

131104365500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18312 (or 18300 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 131104365500 its reverse (5563401131), we get a palindrome (136667766631).

The spelling of 131104365500 in words is "one hundred thirty-one billion, one hundred four million, three hundred sixty-five thousand, five hundred".