21300244410 has 64 divisors (see below), whose sum is σ = 51856656768. Its totient is φ = 5598388224.

The previous prime is 21300244391. The next prime is 21300244411. The reversal of 21300244410 is 1444200312.

It is not an unprimeable number, because it can be changed into a prime (21300244411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4625169 + ... + 4629771.

It is an arithmetic number, because the mean of its divisors is an integer number (810260262).

Almost surely, 2^21300244410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21300244410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25928328384).

21300244410 is an abundant number, since it is smaller than the sum of its proper divisors (30556412358).

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

21300244410 is a wasteful number, since it uses less digits than its factorization.

21300244410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6799.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21300244410 its reverse (1444200312), we get a palindrome (22744444722).

The spelling of 21300244410 in words is "twenty-one billion, three hundred million, two hundred forty-four thousand, four hundred ten".