21234201043304 has 16 divisors (see below), whose sum is σ = 39814704448800. Its totient is φ = 10616946523632.

The previous prime is 21234201043277. The next prime is 21234201043333. The reversal of 21234201043304 is 40334010243212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18662684 + ... + 19767755.

It is an arithmetic number, because the mean of its divisors is an integer number (2488419028050).

Almost surely, 2^{21234201043304} is an apocalyptic number.

It is an amenable number.

21234201043304 is a deficient number, since it is larger than the sum of its proper divisors (18580503405496).

21234201043304 is a wasteful number, since it uses less digits than its factorization.

21234201043304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38499512 (or 38499508 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 21234201043304 its reverse (40334010243212), we get a palindrome (61568211286516).

The spelling of 21234201043304 in words is "twenty-one trillion, two hundred thirty-four billion, two hundred one million, forty-three thousand, three hundred four".