21113114321223 has 12 divisors (see below), whose sum is σ = 30496765768560. Its totient is φ = 14075388740256.

The previous prime is 21113114321213. The next prime is 21113114321227. The reversal of 21113114321223 is 32212341131112.

21113114321223 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 3 + 1 + 1 + 432 + 1 + 223 = 666.

It is not a de Polignac number, because 21113114321223 - 2¹⁴ = 21113114304839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113114321227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7016923 + ... + 9563651.

It is an arithmetic number, because the mean of its divisors is an integer number (2541397147380).

Almost surely, 2^{21113114321223} is an apocalyptic number.

21113114321223 is a deficient number, since it is larger than the sum of its proper divisors (9383651447337).

21113114321223 is a wasteful number, since it uses less digits than its factorization.

21113114321223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467878 (or 3467875 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 21113114321223 its reverse (32212341131112), we get a palindrome (53325455452335).

The spelling of 21113114321223 in words is "twenty-one trillion, one hundred thirteen billion, one hundred fourteen million, three hundred twenty-one thousand, two hundred twenty-three".