2120243113 has 2 divisors, whose sum is σ = 2120243114. Its totient is φ = 2120243112.

The previous prime is 2120243101. The next prime is 2120243123. The reversal of 2120243113 is 3113420212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104099984 + 1016143129 = 33228^2 + 31877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120243113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120243123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060121556 + 1060121557.

It is an arithmetic number, because the mean of its divisors is an integer number (1060121557).

Almost surely, 2^2120243113 is an apocalyptic number.

It is an amenable number.

2120243113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120243113 is an equidigital number, since it uses as much as digits as its factorization.

2120243113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2120243113 is about 46046.0976956788. The cubic root of 2120243113 is about 1284.6807612846.

Adding to 2120243113 its reverse (3113420212), we get a palindrome (5233663325).

The spelling of 2120243113 in words is "two billion, one hundred twenty million, two hundred forty-three thousand, one hundred thirteen".