2111102011 has 2 divisors, whose sum is σ = 2111102012. Its totient is φ = 2111102010.

The previous prime is 2111101997. The next prime is 2111102029. The reversal of 2111102011 is 1102011112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111102011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111102051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055551005 + 1055551006.

It is an arithmetic number, because the mean of its divisors is an integer number (1055551006).

Almost surely, 2^2111102011 is an apocalyptic number.

2111102011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111102011 is an equidigital number, since it uses as much as digits as its factorization.

2111102011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 2111102011 is about 45946.7301448101. The cubic root of 2111102011 is about 1282.8318671710.

Adding to 2111102011 its reverse (1102011112), we get a palindrome (3213113123).

The spelling of 2111102011 in words is "two billion, one hundred eleven million, one hundred two thousand, eleven".