21302103211323 has 64 divisors (see below), whose sum is σ = 31760185027584. Its totient is φ = 12695886086400.

The previous prime is 21302103211307. The next prime is 21302103211331. The reversal of 21302103211323 is 32311230120312.

It is not a de Polignac number, because 21302103211323 - 2⁴ = 21302103211307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21302103211293 and 21302103211302.

It is not an unprimeable number, because it can be changed into a prime (21302103211373) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1696966815 + ... + 1696979367.

It is an arithmetic number, because the mean of its divisors is an integer number (496252891056).

Almost surely, 2^{21302103211323} is an apocalyptic number.

21302103211323 is a deficient number, since it is larger than the sum of its proper divisors (10458081816261).

21302103211323 is a wasteful number, since it uses less digits than its factorization.

21302103211323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19617 (or 19595 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21302103211323 its reverse (32311230120312), we get a palindrome (53613333331635).

The spelling of 21302103211323 in words is "twenty-one trillion, three hundred two billion, one hundred three million, two hundred eleven thousand, three hundred twenty-three".