21302323103323 has 16 divisors (see below), whose sum is σ = 22021706170080. Its totient is φ = 20595221547264.

The previous prime is 21302323103261. The next prime is 21302323103359. The reversal of 21302323103323 is 32330132320312.

It is a cyclic number.

It is not a de Polignac number, because 21302323103323 - 2⁹ = 21302323102811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21302323103291 and 21302323103300.

It is not an unprimeable number, because it can be changed into a prime (21302323103623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710108 + ... + 6747526.

It is an arithmetic number, because the mean of its divisors is an integer number (1376356635630).

Almost surely, 2^{21302323103323} is an apocalyptic number.

21302323103323 is a deficient number, since it is larger than the sum of its proper divisors (719383066757).

21302323103323 is a wasteful number, since it uses less digits than its factorization.

21302323103323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038638.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 21302323103323 its reverse (32330132320312), we get a palindrome (53632455423635).

The spelling of 21302323103323 in words is "twenty-one trillion, three hundred two billion, three hundred twenty-three million, one hundred three thousand, three hundred twenty-three".