213333325333361 has 2 divisors, whose sum is σ = 213333325333362. Its totient is φ = 213333325333360.

The previous prime is 213333325333321. The next prime is 213333325333397. The reversal of 213333325333361 is 163333523333312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152508050842225 + 60825274491136 = 12349415^2 + 7799056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213333325333361 is a prime.

It is a super-2 number, since 2×213333325333361² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213333325333321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106666662666680 + 106666662666681.

It is an arithmetic number, because the mean of its divisors is an integer number (106666662666681).

Almost surely, 2^{213333325333361} is an apocalyptic number.

It is an amenable number.

213333325333361 is a deficient number, since it is larger than the sum of its proper divisors (1).

213333325333361 is an equidigital number, since it uses as much as digits as its factorization.

213333325333361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2361960, while the sum is 44.

Adding to 213333325333361 its reverse (163333523333312), we get a palindrome (376666848666673).

The spelling of 213333325333361 in words is "two hundred thirteen trillion, three hundred thirty-three billion, three hundred twenty-five million, three hundred thirty-three thousand, three hundred sixty-one".