21342413200 has 60 divisors (see below), whose sum is σ = 51489918720. Its totient is φ = 8501207680.

The previous prime is 21342413177. The next prime is 21342413237. The reversal of 21342413200 is 231424312.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16024 + ... + 207223.

It is an arithmetic number, because the mean of its divisors is an integer number (858165312).

Almost surely, 2^21342413200 is an apocalyptic number.

21342413200 is a gapful number since it is divisible by the number (20) 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 21342413200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25744959360).

21342413200 is an abundant number, since it is smaller than the sum of its proper divisors (30147505520).

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

21342413200 is a wasteful number, since it uses less digits than its factorization.

21342413200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223504 (or 223493 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21342413200 its reverse (231424312), we get a palindrome (21573837512).

The spelling of 21342413200 in words is "twenty-one billion, three hundred forty-two million, four hundred thirteen thousand, two hundred".