20321313110323 has 2 divisors, whose sum is σ = 20321313110324. Its totient is φ = 20321313110322.

The previous prime is 20321313110291. The next prime is 20321313110333. The reversal of 20321313110323 is 32301131312302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20321313110323 - 2⁵ = 20321313110291 is a prime.

It is not a weakly prime, because it can be changed into another prime (20321313110333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160656555161 + 10160656555162.

It is an arithmetic number, because the mean of its divisors is an integer number (10160656555162).

Almost surely, 2^{20321313110323} is an apocalyptic number.

20321313110323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321313110323 is an equidigital number, since it uses as much as digits as its factorization.

20321313110323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20321313110323 its reverse (32301131312302), we get a palindrome (52622444422625).

The spelling of 20321313110323 in words is "twenty trillion, three hundred twenty-one billion, three hundred thirteen million, one hundred ten thousand, three hundred twenty-three".