2120111011 has 2 divisors, whose sum is σ = 2120111012. Its totient is φ = 2120111010.

The previous prime is 2120110973. The next prime is 2120111023. The reversal of 2120111011 is 1101110212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120111011 - 2¹⁵ = 2120078243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120111051) 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, 1060055505 + 1060055506.

It is an arithmetic number, because the mean of its divisors is an integer number (1060055506).

Almost surely, 2^2120111011 is an apocalyptic number.

2120111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120111011 is an equidigital number, since it uses as much as digits as its factorization.

2120111011 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2120111011 is about 46044.6632195307. The cubic root of 2120111011 is about 1284.6540800011.

Adding to 2120111011 its reverse (1101110212), we get a palindrome (3221221223).

The spelling of 2120111011 in words is "two billion, one hundred twenty million, one hundred eleven thousand, eleven".