21331320003214 has 16 divisors (see below), whose sum is σ = 34468655930352. Its totient is φ = 9842261825088.

The previous prime is 21331320003163. The next prime is 21331320003233. The reversal of 21331320003214 is 41230002313312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123361599 + ... + 123534394.

It is an arithmetic number, because the mean of its divisors is an integer number (2154290995647).

Almost surely, 2^{21331320003214} is an apocalyptic number.

21331320003214 is a deficient number, since it is larger than the sum of its proper divisors (13137335927138).

21331320003214 is a wasteful number, since it uses less digits than its factorization.

21331320003214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246899331.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21331320003214 its reverse (41230002313312), we get a palindrome (62561322316526).

The spelling of 21331320003214 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred twenty million, three thousand, two hundred fourteen".