21323103023223 has 12 divisors (see below), whose sum is σ = 30800079321648. Its totient is φ = 14215382805600.

The previous prime is 21323103023177. The next prime is 21323103023267. The reversal of 21323103023223 is 32232030132312.

21323103023223 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 31 + 0 + 302 + 322 + 3 = 666.

It is not a de Polignac number, because 21323103023223 - 2²⁶ = 21323035914359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323103023273) 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, 9429123 + ... + 11469723.

It is an arithmetic number, because the mean of its divisors is an integer number (2566673276804).

Almost surely, 2^{21323103023223} is an apocalyptic number.

21323103023223 is a deficient number, since it is larger than the sum of its proper divisors (9476976298425).

21323103023223 is a wasteful number, since it uses less digits than its factorization.

21323103023223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201654 (or 3201651 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21323103023223 its reverse (32232030132312), we get a palindrome (53555133155535).

The spelling of 21323103023223 in words is "twenty-one trillion, three hundred twenty-three billion, one hundred three million, twenty-three thousand, two hundred twenty-three".