21303130344000 has 112 divisors (see below), whose sum is σ = 70342936475136. Its totient is φ = 5680834752000.

The previous prime is 21303130343947. The next prime is 21303130344007. The reversal of 21303130344000 is 44303130312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (21303130344007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443791216 + ... + 443839215.

Almost surely, 2^{21303130344000} is an apocalyptic number.

21303130344000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21303130344000 is an abundant number, since it is smaller than the sum of its proper divisors (49039806131136).

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

21303130344000 is an equidigital number, since it uses as much as digits as its factorization.

21303130344000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887630461 (or 887630441 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21303130344000 its reverse (44303130312), we get a palindrome (21347433474312).

The spelling of 21303130344000 in words is "twenty-one trillion, three hundred three billion, one hundred thirty million, three hundred forty-four thousand".