1223213303 has 16 divisors (see below), whose sum is σ = 1384395936. Its totient is φ = 1073036160.

The previous prime is 1223213279. The next prime is 1223213333. The reversal of 1223213303 is 3033123221.

It is a cyclic number.

It is not a de Polignac number, because 1223213303 - 2¹⁸ = 1222951159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223213333) 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, 8888 + ... + 50253.

It is an arithmetic number, because the mean of its divisors is an integer number (86524746).

Almost surely, 2^1223213303 is an apocalyptic number.

1223213303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1223213303 is a deficient number, since it is larger than the sum of its proper divisors (161182633).

1223213303 is a wasteful number, since it uses less digits than its factorization.

1223213303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59234.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1223213303 is about 34974.4664433927. The cubic root of 1223213303 is about 1069.4670251585.

Adding to 1223213303 its reverse (3033123221), we get a palindrome (4256336524).

The spelling of 1223213303 in words is "one billion, two hundred twenty-three million, two hundred thirteen thousand, three hundred three".