20323303111 has 2 divisors, whose sum is σ = 20323303112. Its totient is φ = 20323303110.

The previous prime is 20323303109. The next prime is 20323303139. The reversal of 20323303111 is 11130332302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20323303111 - 2¹ = 20323303109 is a prime.

Together with 20323303109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323303181) 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, 10161651555 + 10161651556.

It is an arithmetic number, because the mean of its divisors is an integer number (10161651556).

Almost surely, 2^20323303111 is an apocalyptic number.

20323303111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323303111 is an equidigital number, since it uses as much as digits as its factorization.

20323303111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20323303111 its reverse (11130332302), we get a palindrome (31453635413).

The spelling of 20323303111 in words is "twenty billion, three hundred twenty-three million, three hundred three thousand, one hundred eleven".