21320421373214 has 8 divisors (see below), whose sum is σ = 32210708549880. Its totient is φ = 10583518523256.

The previous prime is 21320421373171. The next prime is 21320421373217. The reversal of 21320421373214 is 41237312402312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21320421373217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38346081329 + ... + 38346081884.

It is an arithmetic number, because the mean of its divisors is an integer number (4026338568735).

Almost surely, 2^{21320421373214} is an apocalyptic number.

21320421373214 is a deficient number, since it is larger than the sum of its proper divisors (10890287176666).

21320421373214 is a wasteful number, since it uses less digits than its factorization.

21320421373214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76692163354.

The product of its (nonzero) digits is 48384, while the sum is 35.

Adding to 21320421373214 its reverse (41237312402312), we get a palindrome (62557733775526).

The spelling of 21320421373214 in words is "twenty-one trillion, three hundred twenty billion, four hundred twenty-one million, three hundred seventy-three thousand, two hundred fourteen".