1223313305 has 8 divisors (see below), whose sum is σ = 1531801152. Its totient is φ = 936100528.

The previous prime is 1223313281. The next prime is 1223313317. The reversal of 1223313305 is 5033133221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223313305 - 2¹² = 1223309209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5318639 + ... + 5318868.

It is an arithmetic number, because the mean of its divisors is an integer number (191475144).

Almost surely, 2^1223313305 is an apocalyptic number.

It is an amenable number.

1223313305 is a deficient number, since it is larger than the sum of its proper divisors (308487847).

1223313305 is a wasteful number, since it uses less digits than its factorization.

1223313305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10637535.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 1223313305 is about 34975.8960571420. The cubic root of 1223313305 is about 1069.4961685975.

Adding to 1223313305 its reverse (5033133221), we get a palindrome (6256446526).

The spelling of 1223313305 in words is "one billion, two hundred twenty-three million, three hundred thirteen thousand, three hundred five".