1323001213 has 2 divisors, whose sum is σ = 1323001214. Its totient is φ = 1323001212.

The previous prime is 1323001201. The next prime is 1323001223. The reversal of 1323001213 is 3121003231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1322995129 + 6084 = 36373^2 + 78^2 .

It is an emirp because it is prime and its reverse (3121003231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1323001213 - 2⁵ = 1323001181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323001223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661500606 + 661500607.

It is an arithmetic number, because the mean of its divisors is an integer number (661500607).

Almost surely, 2^1323001213 is an apocalyptic number.

It is an amenable number.

1323001213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323001213 is an equidigital number, since it uses as much as digits as its factorization.

1323001213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1323001213 is about 36373.0836333682. The cubic root of 1323001213 is about 1097.7920485123.

Adding to 1323001213 its reverse (3121003231), we get a palindrome (4444004444).

The spelling of 1323001213 in words is "one billion, three hundred twenty-three million, one thousand, two hundred thirteen".