20303113111 has 2 divisors, whose sum is σ = 20303113112. Its totient is φ = 20303113110.

The previous prime is 20303113097. The next prime is 20303113151. The reversal of 20303113111 is 11131130302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20303113111 - 2⁷ = 20303112983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20303113151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151556555 + 10151556556.

It is an arithmetic number, because the mean of its divisors is an integer number (10151556556).

Almost surely, 2^20303113111 is an apocalyptic number.

20303113111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303113111 is an equidigital number, since it uses as much as digits as its factorization.

20303113111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 20303113111 its reverse (11131130302), we get a palindrome (31434243413).

The spelling of 20303113111 in words is "twenty billion, three hundred three million, one hundred thirteen thousand, one hundred eleven".