21413003204 has 6 divisors (see below), whose sum is σ = 37472755614. Its totient is φ = 10706501600.

The previous prime is 21413003189. The next prime is 21413003231. The reversal of 21413003204 is 40230031412.

It can be written as a sum of positive squares in only one way, i.e., 18482946304 + 2930056900 = 135952^2 + 54130^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2676625397 + ... + 2676625404.

It is an arithmetic number, because the mean of its divisors is an integer number (6245459269).

Almost surely, 2^21413003204 is an apocalyptic number.

It is an amenable number.

21413003204 is a deficient number, since it is larger than the sum of its proper divisors (16059752410).

21413003204 is a wasteful number, since it uses less digits than its factorization.

21413003204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353250805 (or 5353250803 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21413003204 its reverse (40230031412), we get a palindrome (61643034616).

The spelling of 21413003204 in words is "twenty-one billion, four hundred thirteen million, three thousand, two hundred four".