20302313111111 has 2 divisors, whose sum is σ = 20302313111112. Its totient is φ = 20302313111110.

The previous prime is 20302313111107. The next prime is 20302313111141. The reversal of 20302313111111 is 11111131320302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20302313111111 - 2² = 20302313111107 is a prime.

It is a super-2 number, since 2×20302313111111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302313111141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151156555555 + 10151156555556.

It is an arithmetic number, because the mean of its divisors is an integer number (10151156555556).

Almost surely, 2^{20302313111111} is an apocalyptic number.

20302313111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302313111111 is an equidigital number, since it uses as much as digits as its factorization.

20302313111111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 20302313111111 its reverse (11111131320302), we get a palindrome (31413444431413).

The spelling of 20302313111111 in words is "twenty trillion, three hundred two billion, three hundred thirteen million, one hundred eleven thousand, one hundred eleven".