1223003205 has 120 divisors (see below), whose sum is σ = 2392861152. Its totient is φ = 599622912.

The previous prime is 1223003179. The next prime is 1223003207. The reversal of 1223003205 is 5023003221.

It is not a de Polignac number, because 1223003205 - 2⁶ = 1223003141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223003207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 28441914 + ... + 28441956.

Almost surely, 2^1223003205 is an apocalyptic number.

1223003205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223003205 is a deficient number, since it is larger than the sum of its proper divisors (1169857947).

1223003205 is an frugal number, since it uses more digits than its factorization.

1223003205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1223003205 is about 34971.4627231976. The cubic root of 1223003205 is about 1069.4057914260.

Adding to 1223003205 its reverse (5023003221), we get a palindrome (6246006426).

The spelling of 1223003205 in words is "one billion, two hundred twenty-three million, three thousand, two hundred five".