20202111020011 has 2 divisors, whose sum is σ = 20202111020012. Its totient is φ = 20202111020010.

The previous prime is 20202111019997. The next prime is 20202111020053. The reversal of 20202111020011 is 11002011120202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202111020011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20202111019973 and 20202111020000.

It is not a weakly prime, because it can be changed into another prime (20202111020071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101055510005 + 10101055510006.

It is an arithmetic number, because the mean of its divisors is an integer number (10101055510006).

Almost surely, 2^{20202111020011} is an apocalyptic number.

20202111020011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202111020011 is an equidigital number, since it uses as much as digits as its factorization.

20202111020011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20202111020011 its reverse (11002011120202), we get a palindrome (31204122140213).

The spelling of 20202111020011 in words is "twenty trillion, two hundred two billion, one hundred eleven million, twenty thousand, eleven".