1223320353 has 4 divisors (see below), whose sum is σ = 1631093808. Its totient is φ = 815546900.

The previous prime is 1223320303. The next prime is 1223320387. The reversal of 1223320353 is 3530233221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1223320353 - 2⁹ = 1223319841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223320303) 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 3 ways as a sum of consecutive naturals, for example, 203886723 + ... + 203886728.

It is an arithmetic number, because the mean of its divisors is an integer number (407773452).

Almost surely, 2^1223320353 is an apocalyptic number.

It is an amenable number.

1223320353 is a deficient number, since it is larger than the sum of its proper divisors (407773455).

1223320353 is an equidigital number, since it uses as much as digits as its factorization.

1223320353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407773454.

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

The square root of 1223320353 is about 34975.9968120996. The cubic root of 1223320353 is about 1069.4982225261.

Adding to 1223320353 its reverse (3530233221), we get a palindrome (4753553574).

The spelling of 1223320353 in words is "one billion, two hundred twenty-three million, three hundred twenty thousand, three hundred fifty-three".