15421113200 has 120 divisors (see below), whose sum is σ = 38391181200. Its totient is φ = 5948999680.

The previous prime is 15421113199. The next prime is 15421113247. The reversal of 15421113200 is 231112451.

15421113200 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 (20).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1244636 + ... + 1256964.

It is an arithmetic number, because the mean of its divisors is an integer number (319926510).

Almost surely, 2^15421113200 is an apocalyptic number.

15421113200 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 15421113200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19195590600).

15421113200 is an abundant number, since it is smaller than the sum of its proper divisors (22970068000).

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

15421113200 is a wasteful number, since it uses less digits than its factorization.

15421113200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12459 (or 12448 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 15421113200 its reverse (231112451), we get a palindrome (15652225651).

The spelling of 15421113200 in words is "fifteen billion, four hundred twenty-one million, one hundred thirteen thousand, two hundred".