2120021093 has 2 divisors, whose sum is σ = 2120021094. Its totient is φ = 2120021092.

The previous prime is 2120021089. The next prime is 2120021107. The reversal of 2120021093 is 3901200212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1069159204 + 1050861889 = 32698^2 + 32417^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120021093 - 2² = 2120021089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120021003) 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, 1060010546 + 1060010547.

It is an arithmetic number, because the mean of its divisors is an integer number (1060010547).

Almost surely, 2^2120021093 is an apocalyptic number.

It is an amenable number.

2120021093 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120021093 is an equidigital number, since it uses as much as digits as its factorization.

2120021093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2120021093 is about 46043.6867876585. The cubic root of 2120021093 is about 1284.6359181914.

The spelling of 2120021093 in words is "two billion, one hundred twenty million, twenty-one thousand, ninety-three".