1305105323 has 2 divisors, whose sum is σ = 1305105324. Its totient is φ = 1305105322.

The previous prime is 1305105281. The next prime is 1305105371. The reversal of 1305105323 is 3235015031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1305105323 - 2¹⁶ = 1305039787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1305105223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652552661 + 652552662.

It is an arithmetic number, because the mean of its divisors is an integer number (652552662).

Almost surely, 2^1305105323 is an apocalyptic number.

1305105323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305105323 is an equidigital number, since it uses as much as digits as its factorization.

1305105323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1305105323 is about 36126.2414734774. The cubic root of 1305105323 is about 1092.8197125757.

The spelling of 1305105323 in words is "one billion, three hundred five million, one hundred five thousand, three hundred twenty-three".