1302220163 has 2 divisors, whose sum is σ = 1302220164. Its totient is φ = 1302220162.

The previous prime is 1302220109. The next prime is 1302220201. The reversal of 1302220163 is 3610222031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1302220163 - 2⁶ = 1302220099 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1302220363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651110081 + 651110082.

It is an arithmetic number, because the mean of its divisors is an integer number (651110082).

Almost surely, 2^1302220163 is an apocalyptic number.

1302220163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302220163 is an equidigital number, since it uses as much as digits as its factorization.

1302220163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1302220163 is about 36086.2877420219. The cubic root of 1302220163 is about 1092.0138297322.

Adding to 1302220163 its reverse (3610222031), we get a palindrome (4912442194).

The spelling of 1302220163 in words is "one billion, three hundred two million, two hundred twenty thousand, one hundred sixty-three".