20113301111 has 2 divisors, whose sum is σ = 20113301112. Its totient is φ = 20113301110.

The previous prime is 20113301099. The next prime is 20113301113. The reversal of 20113301111 is 11110331102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20113301111 is a prime.

Together with 20113301113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113301113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056650555 + 10056650556.

It is an arithmetic number, because the mean of its divisors is an integer number (10056650556).

Almost surely, 2^20113301111 is an apocalyptic number.

20113301111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113301111 is an equidigital number, since it uses as much as digits as its factorization.

20113301111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 20113301111 its reverse (11110331102), we get a palindrome (31223632213).

The spelling of 20113301111 in words is "twenty billion, one hundred thirteen million, three hundred one thousand, one hundred eleven".