1223320133 has 16 divisors (see below), whose sum is σ = 1432828800. Its totient is φ = 1043991648.

The previous prime is 1223320129. The next prime is 1223320141. The reversal of 1223320133 is 3310233221.

It is not a de Polignac number, because 1223320133 - 2² = 1223320129 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 (1223320633) 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 15 ways as a sum of consecutive naturals, for example, 72266 + ... + 87572.

It is an arithmetic number, because the mean of its divisors is an integer number (89551800).

Almost surely, 2^1223320133 is an apocalyptic number.

It is an amenable number.

1223320133 is a deficient number, since it is larger than the sum of its proper divisors (209508667).

1223320133 is an equidigital number, since it uses as much as digits as its factorization.

1223320133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15561 (or 15547 counting only the distinct ones).

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

The square root of 1223320133 is about 34975.9936670854. The cubic root of 1223320133 is about 1069.4981584138.

Adding to 1223320133 its reverse (3310233221), we get a palindrome (4533553354).

The spelling of 1223320133 in words is "one billion, two hundred twenty-three million, three hundred twenty thousand, one hundred thirty-three".