21320562124334 has 16 divisors (see below), whose sum is σ = 34898267249280. Its totient is φ = 9688366079160.

The previous prime is 21320562124307. The next prime is 21320562124363. The reversal of 21320562124334 is 43342126502312.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139848224 + ... + 140000595.

It is an arithmetic number, because the mean of its divisors is an integer number (2181141703080).

Almost surely, 2^{21320562124334} is an apocalyptic number.

21320562124334 is a deficient number, since it is larger than the sum of its proper divisors (13577705124946).

21320562124334 is a wasteful number, since it uses less digits than its factorization.

21320562124334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279852295.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 21320562124334 its reverse (43342126502312), we get a palindrome (64662688626646).

The spelling of 21320562124334 in words is "twenty-one trillion, three hundred twenty billion, five hundred sixty-two million, one hundred twenty-four thousand, three hundred thirty-four".