21302000430343 has 4 divisors (see below), whose sum is σ = 21306139157160. Its totient is φ = 21297861703528.

The previous prime is 21302000430287. The next prime is 21302000430367. The reversal of 21302000430343 is 34303400020312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21302000430343 - 2²¹ = 21301998333191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302000490343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2069355688 + ... + 2069365981.

It is an arithmetic number, because the mean of its divisors is an integer number (5326534789290).

Almost surely, 2^{21302000430343} is an apocalyptic number.

21302000430343 is a deficient number, since it is larger than the sum of its proper divisors (4138726817).

21302000430343 is an equidigital number, since it uses as much as digits as its factorization.

21302000430343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138726816.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21302000430343 its reverse (34303400020312), we get a palindrome (55605400450655).

The spelling of 21302000430343 in words is "twenty-one trillion, three hundred two billion, four hundred thirty thousand, three hundred forty-three".