21303421432211 has 8 divisors (see below), whose sum is σ = 21887841701040. Its totient is φ = 20726446007808.

The previous prime is 21303421432151. The next prime is 21303421432231. The reversal of 21303421432211 is 11223412430312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21303421432211 - 2¹⁴ = 21303421415827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21303421432231) 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 7 ways as a sum of consecutive naturals, for example, 1861205306 + ... + 1861216751.

It is an arithmetic number, because the mean of its divisors is an integer number (2735980212630).

Almost surely, 2^{21303421432211} is an apocalyptic number.

21303421432211 is a deficient number, since it is larger than the sum of its proper divisors (584420268829).

21303421432211 is an equidigital number, since it uses as much as digits as its factorization.

21303421432211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722422213.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 21303421432211 its reverse (11223412430312), we get a palindrome (32526833862523).

The spelling of 21303421432211 in words is "twenty-one trillion, three hundred three billion, four hundred twenty-one million, four hundred thirty-two thousand, two hundred eleven".