20321323001323 has 2 divisors, whose sum is σ = 20321323001324. Its totient is φ = 20321323001322.

The previous prime is 20321323001311. The next prime is 20321323001327. The reversal of 20321323001323 is 32310032312302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20321323001323 is a prime.

It is not a weakly prime, because it can be changed into another prime (20321323001327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160661500661 + 10160661500662.

It is an arithmetic number, because the mean of its divisors is an integer number (10160661500662).

Almost surely, 2^{20321323001323} is an apocalyptic number.

20321323001323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321323001323 is an equidigital number, since it uses as much as digits as its factorization.

20321323001323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20321323001323 its reverse (32310032312302), we get a palindrome (52631355313625).

The spelling of 20321323001323 in words is "twenty trillion, three hundred twenty-one billion, three hundred twenty-three million, one thousand, three hundred twenty-three".