213020020163 has 2 divisors, whose sum is σ = 213020020164. Its totient is φ = 213020020162.

The previous prime is 213020020093. The next prime is 213020020217. The reversal of 213020020163 is 361020020312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213020020163 is a prime.

It is not a weakly prime, because it can be changed into another prime (213020020963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106510010081 + 106510010082.

It is an arithmetic number, because the mean of its divisors is an integer number (106510010082).

Almost surely, 2^213020020163 is an apocalyptic number.

213020020163 is a deficient number, since it is larger than the sum of its proper divisors (1).

213020020163 is an equidigital number, since it uses as much as digits as its factorization.

213020020163 is an odious number, because the sum of its binary digits is odd.

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

Adding to 213020020163 its reverse (361020020312), we get a palindrome (574040040475).

The spelling of 213020020163 in words is "two hundred thirteen billion, twenty million, twenty thousand, one hundred sixty-three".