2321320163 has 2 divisors, whose sum is σ = 2321320164. Its totient is φ = 2321320162.

The previous prime is 2321320153. The next prime is 2321320181. The reversal of 2321320163 is 3610231232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2321320163 - 2⁸ = 2321319907 is a prime.

It is not a weakly prime, because it can be changed into another prime (2321320153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160660081 + 1160660082.

It is an arithmetic number, because the mean of its divisors is an integer number (1160660082).

Almost surely, 2^2321320163 is an apocalyptic number.

2321320163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321320163 is an equidigital number, since it uses as much as digits as its factorization.

2321320163 is an evil number, because the sum of its binary digits is even.

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

The square root of 2321320163 is about 48180.0805624067. The cubic root of 2321320163 is about 1324.0722425311.

Adding to 2321320163 its reverse (3610231232), we get a palindrome (5931551395).

The spelling of 2321320163 in words is "two billion, three hundred twenty-one million, three hundred twenty thousand, one hundred sixty-three".