21314121303223 has 16 divisors (see below), whose sum is σ = 24777413134144. Its totient is φ = 17955895656960.

The previous prime is 21314121303173. The next prime is 21314121303253. The reversal of 21314121303223 is 32230312141312.

It is a cyclic number.

It is not a de Polignac number, because 21314121303223 - 2¹³ = 21314121295031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21314121303191 and 21314121303200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314121303253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18689040 + ... + 19796677.

It is an arithmetic number, because the mean of its divisors is an integer number (1548588320884).

Almost surely, 2^{21314121303223} is an apocalyptic number.

21314121303223 is a deficient number, since it is larger than the sum of its proper divisors (3463291830921).

21314121303223 is a wasteful number, since it uses less digits than its factorization.

21314121303223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38487082.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 21314121303223 its reverse (32230312141312), we get a palindrome (53544433444535).

The spelling of 21314121303223 in words is "twenty-one trillion, three hundred fourteen billion, one hundred twenty-one million, three hundred three thousand, two hundred twenty-three".