21000210103323 has 24 divisors (see below), whose sum is σ = 33105571939440. Its totient is φ = 12721887840960.

The previous prime is 21000210103291. The next prime is 21000210103331. The reversal of 21000210103323 is 32330101200012.

It is not a de Polignac number, because 21000210103323 - 2⁵ = 21000210103291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21000210103296 and 21000210103305.

It is not an unprimeable number, because it can be changed into a prime (21000210103423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45705436 + ... + 46162617.

It is an arithmetic number, because the mean of its divisors is an integer number (1379398830810).

Almost surely, 2^{21000210103323} is an apocalyptic number.

21000210103323 is a deficient number, since it is larger than the sum of its proper divisors (12105361836117).

21000210103323 is a wasteful number, since it uses less digits than its factorization.

21000210103323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91870379 (or 91870376 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21000210103323 its reverse (32330101200012), we get a palindrome (53330311303335).

The spelling of 21000210103323 in words is "twenty-one trillion, two hundred ten million, one hundred three thousand, three hundred twenty-three".