20302323163 has 2 divisors, whose sum is σ = 20302323164. Its totient is φ = 20302323162.

The previous prime is 20302323071. The next prime is 20302323187. The reversal of 20302323163 is 36132320302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20302323163 is a prime.

It is not a weakly prime, because it can be changed into another prime (20302323263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151161581 + 10151161582.

It is an arithmetic number, because the mean of its divisors is an integer number (10151161582).

Almost surely, 2^20302323163 is an apocalyptic number.

20302323163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302323163 is an equidigital number, since it uses as much as digits as its factorization.

20302323163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20302323163 its reverse (36132320302), we get a palindrome (56434643465).

The spelling of 20302323163 in words is "twenty billion, three hundred two million, three hundred twenty-three thousand, one hundred sixty-three".