2102042011 has 2 divisors, whose sum is σ = 2102042012. Its totient is φ = 2102042010.

The previous prime is 2102041999. The next prime is 2102042051. The reversal of 2102042011 is 1102402012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102042011 - 2⁹ = 2102041499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102041982 and 2102042000.

It is not a weakly prime, because it can be changed into another prime (2102042051) 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, 1051021005 + 1051021006.

It is an arithmetic number, because the mean of its divisors is an integer number (1051021006).

Almost surely, 2^2102042011 is an apocalyptic number.

2102042011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102042011 is an equidigital number, since it uses as much as digits as its factorization.

2102042011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2102042011 is about 45848.0317025715. The cubic root of 2102042011 is about 1280.9941030218.

Adding to 2102042011 its reverse (1102402012), we get a palindrome (3204444023).

The spelling of 2102042011 in words is "two billion, one hundred two million, forty-two thousand, eleven".