1223323305 has 16 divisors (see below), whose sum is σ = 1980901440. Its totient is φ = 644577728.

The previous prime is 1223323301. The next prime is 1223323307. The reversal of 1223323305 is 5033233221.

It is a cyclic number.

It is not a de Polignac number, because 1223323305 - 2² = 1223323301 is a prime.

It is a super-2 number, since 2×1223323305² = 2993039817112246050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223323301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490050 + ... + 492539.

It is an arithmetic number, because the mean of its divisors is an integer number (123806340).

Almost surely, 2^1223323305 is an apocalyptic number.

1223323305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223323305 is a deficient number, since it is larger than the sum of its proper divisors (757578135).

1223323305 is an equidigital number, since it uses as much as digits as its factorization.

1223323305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982680.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 1223323305 is about 34976.0390124439. The cubic root of 1223323305 is about 1069.4990827958.

Adding to 1223323305 its reverse (5033233221), we get a palindrome (6256556526).

The spelling of 1223323305 in words is "one billion, two hundred twenty-three million, three hundred twenty-three thousand, three hundred five".