2120250911 has 2 divisors, whose sum is σ = 2120250912. Its totient is φ = 2120250910.

The previous prime is 2120250889. The next prime is 2120250943. The reversal of 2120250911 is 1190520212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120250911 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120250961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060125455 + 1060125456.

It is an arithmetic number, because the mean of its divisors is an integer number (1060125456).

Almost surely, 2^2120250911 is an apocalyptic number.

2120250911 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120250911 is an equidigital number, since it uses as much as digits as its factorization.

2120250911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 2120250911 is about 46046.1823716147. The cubic root of 2120250911 is about 1284.6823362500.

The spelling of 2120250911 in words is "two billion, one hundred twenty million, two hundred fifty thousand, nine hundred eleven".