21113113340210 has 32 divisors (see below), whose sum is σ = 40600865269440. Its totient is φ = 7881344425152.

The previous prime is 21113113340167. The next prime is 21113113340213. The reversal of 21113113340210 is 1204331131112.

It is not an unprimeable number, because it can be changed into a prime (21113113340213) 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, 829253309 + ... + 829278768.

It is an arithmetic number, because the mean of its divisors is an integer number (1268777039670).

Almost surely, 2^{21113113340210} is an apocalyptic number.

21113113340210 is a deficient number, since it is larger than the sum of its proper divisors (19487751929230).

21113113340210 is a wasteful number, since it uses less digits than its factorization.

21113113340210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658532170.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 21113113340210 its reverse (1204331131112), we get a palindrome (22317444471322).

The spelling of 21113113340210 in words is "twenty-one trillion, one hundred thirteen billion, one hundred thirteen million, three hundred forty thousand, two hundred ten".