21330120012323 has 2 divisors, whose sum is σ = 21330120012324. Its totient is φ = 21330120012322.

The previous prime is 21330120012287. The next prime is 21330120012379. The reversal of 21330120012323 is 32321002103312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21330120012323 is a prime.

It is not a weakly prime, because it can be changed into another prime (21330120012023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10665060006161 + 10665060006162.

It is an arithmetic number, because the mean of its divisors is an integer number (10665060006162).

Almost surely, 2^{21330120012323} is an apocalyptic number.

21330120012323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21330120012323 is an equidigital number, since it uses as much as digits as its factorization.

21330120012323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21330120012323 its reverse (32321002103312), we get a palindrome (53651122115635).

The spelling of 21330120012323 in words is "twenty-one trillion, three hundred thirty billion, one hundred twenty million, twelve thousand, three hundred twenty-three".