21301303204 has 12 divisors (see below), whose sum is σ = 37607168844. Its totient is φ = 10556397824.

The previous prime is 21301303201. The next prime is 21301303211. The reversal of 21301303204 is 40230310312.

It can be written as a sum of positive squares in 2 ways, for example, as 1533505600 + 19767797604 = 39160^2 + 140598^2 .

It is not an unprimeable number, because it can be changed into a prime (21301303201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23562937 + ... + 23563840.

It is an arithmetic number, because the mean of its divisors is an integer number (3133930737).

Almost surely, 2^21301303204 is an apocalyptic number.

It is an amenable number.

21301303204 is a deficient number, since it is larger than the sum of its proper divisors (16305865640).

21301303204 is a wasteful number, since it uses less digits than its factorization.

21301303204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47126894 (or 47126892 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21301303204 its reverse (40230310312), we get a palindrome (61531613516).

The spelling of 21301303204 in words is "twenty-one billion, three hundred one million, three hundred three thousand, two hundred four".