1305343223 has 2 divisors, whose sum is σ = 1305343224. Its totient is φ = 1305343222.

The previous prime is 1305343177. The next prime is 1305343229. The reversal of 1305343223 is 3223435031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1305343223 - 2⁶ = 1305343159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1305343192 and 1305343201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305343229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652671611 + 652671612.

It is an arithmetic number, because the mean of its divisors is an integer number (652671612).

Almost surely, 2^1305343223 is an apocalyptic number.

1305343223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305343223 is an equidigital number, since it uses as much as digits as its factorization.

1305343223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 1305343223 is about 36129.5339438526. The cubic root of 1305343223 is about 1092.8861097750.

Adding to 1305343223 its reverse (3223435031), we get a palindrome (4528778254).

The spelling of 1305343223 in words is "one billion, three hundred five million, three hundred forty-three thousand, two hundred twenty-three".