13131433235500 has 192 divisors, whose sum is σ = 30387861504000. Its totient is φ = 4949675808000.

The previous prime is 13131433235497. The next prime is 13131433235519. The reversal of 13131433235500 is 553233413131.

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 63 ways as a sum of consecutive naturals, for example, 143468751 + ... + 143560249.

It is an arithmetic number, because the mean of its divisors is an integer number (158270112000).

Almost surely, 2^{13131433235500} is an apocalyptic number.

13131433235500 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 13131433235500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15193930752000).

13131433235500 is an abundant number, since it is smaller than the sum of its proper divisors (17256428268500).

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

13131433235500 is a wasteful number, since it uses less digits than its factorization.

13131433235500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91793 (or 91781 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 13131433235500 its reverse (553233413131), we get a palindrome (13684666648631).

The spelling of 13131433235500 in words is "thirteen trillion, one hundred thirty-one billion, four hundred thirty-three million, two hundred thirty-five thousand, five hundred".