201213222323 has 2 divisors, whose sum is σ = 201213222324. Its totient is φ = 201213222322.

The previous prime is 201213222319. The next prime is 201213222359. The reversal of 201213222323 is 323222312102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201213222323 - 2² = 201213222319 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (201213222923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100606611161 + 100606611162.

It is an arithmetic number, because the mean of its divisors is an integer number (100606611162).

Almost surely, 2^201213222323 is an apocalyptic number.

201213222323 is a deficient number, since it is larger than the sum of its proper divisors (1).

201213222323 is an equidigital number, since it uses as much as digits as its factorization.

201213222323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 201213222323 its reverse (323222312102), we get a palindrome (524435534425).

The spelling of 201213222323 in words is "two hundred one billion, two hundred thirteen million, two hundred twenty-two thousand, three hundred twenty-three".