1223330313 has 4 divisors (see below), whose sum is σ = 1631107088. Its totient is φ = 815553540.

The previous prime is 1223330309. The next prime is 1223330347. The reversal of 1223330313 is 3130333221.

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 not a de Polignac number, because 1223330313 - 2² = 1223330309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223330313.

It is not an unprimeable number, because it can be changed into a prime (1223330393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203888383 + ... + 203888388.

It is an arithmetic number, because the mean of its divisors is an integer number (407776772).

Almost surely, 2^1223330313 is an apocalyptic number.

It is an amenable number.

1223330313 is a deficient number, since it is larger than the sum of its proper divisors (407776775).

1223330313 is an equidigital number, since it uses as much as digits as its factorization.

1223330313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407776774.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1223330313 is about 34976.1391951713. The cubic root of 1223330313 is about 1069.5011250565.

Adding to 1223330313 its reverse (3130333221), we get a palindrome (4353663534).

The spelling of 1223330313 in words is "one billion, two hundred twenty-three million, three hundred thirty thousand, three hundred thirteen".