20020000201111 has 2 divisors, whose sum is σ = 20020000201112. Its totient is φ = 20020000201110.

The previous prime is 20020000201057. The next prime is 20020000201121. The reversal of 20020000201111 is 11110200002002.

It is an a-pointer prime, because the next prime (20020000201121) can be obtained adding 20020000201111 to its sum of digits (10).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020000201111 - 2¹⁷ = 20020000070039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020000201121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010000100555 + 10010000100556.

It is an arithmetic number, because the mean of its divisors is an integer number (10010000100556).

Almost surely, 2^{20020000201111} is an apocalyptic number.

20020000201111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020000201111 is an equidigital number, since it uses as much as digits as its factorization.

20020000201111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20020000201111 its reverse (11110200002002), we get a palindrome (31130200203113).

The spelling of 20020000201111 in words is "twenty trillion, twenty billion, two hundred one thousand, one hundred eleven".