213003222317 has 2 divisors, whose sum is σ = 213003222318. Its totient is φ = 213003222316.

The previous prime is 213003222293. The next prime is 213003222343. The reversal of 213003222317 is 713222300312.

It is a happy number.

It is an a-pointer prime, because the next prime (213003222343) can be obtained adding 213003222317 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202523400676 + 10479821641 = 450026^2 + 102371^2 .

It is a cyclic number.

It is not a de Polignac number, because 213003222317 - 2¹⁸ = 213002960173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213003242317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106501611158 + 106501611159.

It is an arithmetic number, because the mean of its divisors is an integer number (106501611159).

Almost surely, 2^213003222317 is an apocalyptic number.

It is an amenable number.

213003222317 is a deficient number, since it is larger than the sum of its proper divisors (1).

213003222317 is an equidigital number, since it uses as much as digits as its factorization.

213003222317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 213003222317 its reverse (713222300312), we get a palindrome (926225522629).

The spelling of 213003222317 in words is "two hundred thirteen billion, three million, two hundred twenty-two thousand, three hundred seventeen".