13071236500 has 96 divisors (see below), whose sum is σ = 32660409600. Its totient is φ = 4476816000.

The previous prime is 13071236489. The next prime is 13071236501. The reversal of 13071236500 is 563217031.

13071236500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13071236501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5420295 + ... + 5422705.

It is an arithmetic number, because the mean of its divisors is an integer number (340212600).

Almost surely, 2^13071236500 is an apocalyptic number.

13071236500 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 13071236500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16330204800).

13071236500 is an abundant number, since it is smaller than the sum of its proper divisors (19589173100).

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

13071236500 is a wasteful number, since it uses less digits than its factorization.

13071236500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986 (or 3974 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

It can be divided in two parts, 13071 and 236500, that added together give a triangular number (249571 = T₇₀₆).

The spelling of 13071236500 in words is "thirteen billion, seventy-one million, two hundred thirty-six thousand, five hundred".