21113210312230 has 32 divisors (see below), whose sum is σ = 38306324689920. Its totient is φ = 8378063124480.

The previous prime is 21113210312203. The next prime is 21113210312237. The reversal of 21113210312230 is 3221301231112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113210312237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14133910 + ... + 15556150.

It is an arithmetic number, because the mean of its divisors is an integer number (1197072646560).

Almost surely, 2^{21113210312230} is an apocalyptic number.

21113210312230 is a deficient number, since it is larger than the sum of its proper divisors (17193114377690).

21113210312230 is a wasteful number, since it uses less digits than its factorization.

21113210312230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434064.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21113210312230 its reverse (3221301231112), we get a palindrome (24334511543342).

The spelling of 21113210312230 in words is "twenty-one trillion, one hundred thirteen billion, two hundred ten million, three hundred twelve thousand, two hundred thirty".