1323220267 has 2 divisors, whose sum is σ = 1323220268. Its totient is φ = 1323220266.

The previous prime is 1323220259. The next prime is 1323220271. The reversal of 1323220267 is 7620223231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323220267 - 2³ = 1323220259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323220237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661610133 + 661610134.

It is an arithmetic number, because the mean of its divisors is an integer number (661610134).

Almost surely, 2^1323220267 is an apocalyptic number.

1323220267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323220267 is an equidigital number, since it uses as much as digits as its factorization.

1323220267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1323220267 is about 36376.0947189222. The cubic root of 1323220267 is about 1097.8526336088.

Adding to 1323220267 its reverse (7620223231), we get a palindrome (8943443498).

The spelling of 1323220267 in words is "one billion, three hundred twenty-three million, two hundred twenty thousand, two hundred sixty-seven".