21113201203310 has 64 divisors (see below), whose sum is σ = 39066628043520. Its totient is φ = 8210563764480.

The previous prime is 21113201203309. The next prime is 21113201203319. The reversal of 21113201203310 is 1330210231112.

It is a happy number.

It is a super-2 number, since 2×21113201203310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113201203319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184390697 + ... + 184505163.

It is an arithmetic number, because the mean of its divisors is an integer number (610416063180).

Almost surely, 2^{21113201203310} is an apocalyptic number.

21113201203310 is a deficient number, since it is larger than the sum of its proper divisors (17953426840210).

21113201203310 is a wasteful number, since it uses less digits than its factorization.

21113201203310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116081.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21113201203310 its reverse (1330210231112), we get a palindrome (22443411434422).

The spelling of 21113201203310 in words is "twenty-one trillion, one hundred thirteen billion, two hundred one million, two hundred three thousand, three hundred ten".