213033213361 has 2 divisors, whose sum is σ = 213033213362. Its totient is φ = 213033213360.

The previous prime is 213033213301. The next prime is 213033213397. The reversal of 213033213361 is 163312330312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150820382736 + 62212830625 = 388356^2 + 249425^2 .

It is a cyclic number.

It is not a de Polignac number, because 213033213361 - 2¹⁹ = 213032689073 is a prime.

It is not a weakly prime, because it can be changed into another prime (213033213301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106516606680 + 106516606681.

It is an arithmetic number, because the mean of its divisors is an integer number (106516606681).

Almost surely, 2^213033213361 is an apocalyptic number.

It is an amenable number.

213033213361 is a deficient number, since it is larger than the sum of its proper divisors (1).

213033213361 is an equidigital number, since it uses as much as digits as its factorization.

213033213361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 213033213361 its reverse (163312330312), we get a palindrome (376345543673).

The spelling of 213033213361 in words is "two hundred thirteen billion, thirty-three million, two hundred thirteen thousand, three hundred sixty-one".