20302102111 has 2 divisors, whose sum is σ = 20302102112. Its totient is φ = 20302102110.

The previous prime is 20302102109. The next prime is 20302102141. The reversal of 20302102111 is 11120120302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20302102111 - 2¹ = 20302102109 is a prime.

Together with 20302102109, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20302102091 and 20302102100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302102141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151051055 + 10151051056.

It is an arithmetic number, because the mean of its divisors is an integer number (10151051056).

Almost surely, 2^20302102111 is an apocalyptic number.

20302102111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302102111 is an equidigital number, since it uses as much as digits as its factorization.

20302102111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20302102111 its reverse (11120120302), we get a palindrome (31422222413).

The spelling of 20302102111 in words is "twenty billion, three hundred two million, one hundred two thousand, one hundred eleven".