20323202111 has 2 divisors, whose sum is σ = 20323202112. Its totient is φ = 20323202110.

The previous prime is 20323202089. The next prime is 20323202149. The reversal of 20323202111 is 11120232302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323202111 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20323202111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323262111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161601055 + 10161601056.

It is an arithmetic number, because the mean of its divisors is an integer number (10161601056).

Almost surely, 2^20323202111 is an apocalyptic number.

20323202111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323202111 is an equidigital number, since it uses as much as digits as its factorization.

20323202111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20323202111 its reverse (11120232302), we get a palindrome (31443434413).

The spelling of 20323202111 in words is "twenty billion, three hundred twenty-three million, two hundred two thousand, one hundred eleven".