212311020111233 has 2 divisors, whose sum is σ = 212311020111234. Its totient is φ = 212311020111232.

The previous prime is 212311020111227. The next prime is 212311020111247. The reversal of 212311020111233 is 332111020113212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209019219505009 + 3291800606224 = 14457497^2 + 1814332^2 .

It is a cyclic number.

It is not a de Polignac number, because 212311020111233 - 2⁸ = 212311020110977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212311020111199 and 212311020111208.

It is not a weakly prime, because it can be changed into another prime (212311020111433) 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, 106155510055616 + 106155510055617.

It is an arithmetic number, because the mean of its divisors is an integer number (106155510055617).

Almost surely, 2^{212311020111233} is an apocalyptic number.

It is an amenable number.

212311020111233 is a deficient number, since it is larger than the sum of its proper divisors (1).

212311020111233 is an equidigital number, since it uses as much as digits as its factorization.

212311020111233 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 23.

Adding to 212311020111233 its reverse (332111020113212), we get a palindrome (544422040224445).

The spelling of 212311020111233 in words is "two hundred twelve trillion, three hundred eleven billion, twenty million, one hundred eleven thousand, two hundred thirty-three".