20330111213 has 2 divisors, whose sum is σ = 20330111214. Its totient is φ = 20330111212.

The previous prime is 20330111203. The next prime is 20330111287. The reversal of 20330111213 is 31211103302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20322783364 + 7327849 = 142558^2 + 2707^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330111213 - 2⁶ = 20330111149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20330111191 and 20330111200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330111203) 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, 10165055606 + 10165055607.

It is an arithmetic number, because the mean of its divisors is an integer number (10165055607).

Almost surely, 2^20330111213 is an apocalyptic number.

It is an amenable number.

20330111213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330111213 is an equidigital number, since it uses as much as digits as its factorization.

20330111213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20330111213 its reverse (31211103302), we get a palindrome (51541214515).

The spelling of 20330111213 in words is "twenty billion, three hundred thirty million, one hundred eleven thousand, two hundred thirteen".