1323013249 has 2 divisors, whose sum is σ = 1323013250. Its totient is φ = 1323013248.

The previous prime is 1323013177. The next prime is 1323013303. The reversal of 1323013249 is 9423103231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1196675649 + 126337600 = 34593^2 + 11240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323013249 - 2¹⁷ = 1322882177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323013949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661506624 + 661506625.

It is an arithmetic number, because the mean of its divisors is an integer number (661506625).

Almost surely, 2^1323013249 is an apocalyptic number.

It is an amenable number.

1323013249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323013249 is an equidigital number, since it uses as much as digits as its factorization.

1323013249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1323013249 is about 36373.2490850075. The cubic root of 1323013249 is about 1097.7953775556.

The spelling of 1323013249 in words is "one billion, three hundred twenty-three million, thirteen thousand, two hundred forty-nine".