21300321302 has 16 divisors (see below), whose sum is σ = 35594702640. Its totient is φ = 9491920032.

The previous prime is 21300321253. The next prime is 21300321323. The reversal of 21300321302 is 20312300312.

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, 14124128 + ... + 14125635.

It is an arithmetic number, because the mean of its divisors is an integer number (2224668915).

Almost surely, 2^21300321302 is an apocalyptic number.

21300321302 is a deficient number, since it is larger than the sum of its proper divisors (14294381338).

21300321302 is a wasteful number, since it uses less digits than its factorization.

21300321302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28249807.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21300321302 its reverse (20312300312), we get a palindrome (41612621614).

The spelling of 21300321302 in words is "twenty-one billion, three hundred million, three hundred twenty-one thousand, three hundred two".