21302130400343 has 8 divisors (see below), whose sum is σ = 22965239026128. Its totient is φ = 19642519376064.

The previous prime is 21302130400289. The next prime is 21302130400351. The reversal of 21302130400343 is 34300403120312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21302130400343 - 2⁴⁴ = 3709944355927 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 (21302130490343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874387721 + ... + 874412082.

It is an arithmetic number, because the mean of its divisors is an integer number (2870654878266).

Almost surely, 2^{21302130400343} is an apocalyptic number.

21302130400343 is a deficient number, since it is larger than the sum of its proper divisors (1663108625785).

21302130400343 is a wasteful number, since it uses less digits than its factorization.

21302130400343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748800753.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21302130400343 its reverse (34300403120312), we get a palindrome (55602533520655).

The spelling of 21302130400343 in words is "twenty-one trillion, three hundred two billion, one hundred thirty million, four hundred thousand, three hundred forty-three".