2123320163 has 2 divisors, whose sum is σ = 2123320164. Its totient is φ = 2123320162.

The previous prime is 2123320139. The next prime is 2123320201. The reversal of 2123320163 is 3610233212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123320163 - 2¹⁴ = 2123303779 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123320663) 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, 1061660081 + 1061660082.

It is an arithmetic number, because the mean of its divisors is an integer number (1061660082).

Almost surely, 2^2123320163 is an apocalyptic number.

2123320163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123320163 is an equidigital number, since it uses as much as digits as its factorization.

2123320163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 2123320163 is about 46079.4982937098. The cubic root of 2123320163 is about 1285.3019347319.

Adding to 2123320163 its reverse (3610233212), we get a palindrome (5733553375).

The spelling of 2123320163 in words is "two billion, one hundred twenty-three million, three hundred twenty thousand, one hundred sixty-three".