21320022330323 has 2 divisors, whose sum is σ = 21320022330324. Its totient is φ = 21320022330322.

The previous prime is 21320022330263. The next prime is 21320022330331. The reversal of 21320022330323 is 32303322002312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21320022330323 - 2¹⁶ = 21320022264787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21320022330292 and 21320022330301.

It is not a weakly prime, because it can be changed into another prime (21320022330623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10660011165161 + 10660011165162.

It is an arithmetic number, because the mean of its divisors is an integer number (10660011165162).

Almost surely, 2^{21320022330323} is an apocalyptic number.

21320022330323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21320022330323 is an equidigital number, since it uses as much as digits as its factorization.

21320022330323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 21320022330323 its reverse (32303322002312), we get a palindrome (53623344332635).

The spelling of 21320022330323 in words is "twenty-one trillion, three hundred twenty billion, twenty-two million, three hundred thirty thousand, three hundred twenty-three".