21134304210 has 32 divisors (see below), whose sum is σ = 50767338240. Its totient is φ = 5630813568.

The previous prime is 21134304203. The next prime is 21134304211. The reversal of 21134304210 is 1240343112.

It is not an unprimeable number, because it can be changed into a prime (21134304211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278122 + ... + 345861.

It is an arithmetic number, because the mean of its divisors is an integer number (1586479320).

Almost surely, 2^21134304210 is an apocalyptic number.

21134304210 is an abundant number, since it is smaller than the sum of its proper divisors (29633034030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21134304210 is a wasteful number, since it uses less digits than its factorization.

21134304210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625122.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21134304210 its reverse (1240343112), we get a palindrome (22374647322).

The spelling of 21134304210 in words is "twenty-one billion, one hundred thirty-four million, three hundred four thousand, two hundred ten".