13215631300 has 54 divisors (see below), whose sum is σ = 28961374218. Its totient is φ = 5234509440.

The previous prime is 13215631291. The next prime is 13215631301. The reversal of 13215631300 is 313651231.

13215631300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2264427396 + 10951203904 = 47586^2 + 104648^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (13215631301) 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 17 ways as a sum of consecutive naturals, for example, 1054672 + ... + 1067128.

Almost surely, 2^13215631300 is an apocalyptic number.

13215631300 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 13215631300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14480687109).

13215631300 is an abundant number, since it is smaller than the sum of its proper divisors (15745742918).

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

13215631300 is a wasteful number, since it uses less digits than its factorization.

13215631300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12677 (or 12567 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The spelling of 13215631300 in words is "thirteen billion, two hundred fifteen million, six hundred thirty-one thousand, three hundred".