1304223321 has 16 divisors (see below), whose sum is σ = 1759320000. Its totient is φ = 859342848.

The previous prime is 1304223317. The next prime is 1304223367. The reversal of 1304223321 is 1233224031.

It is not a de Polignac number, because 1304223321 - 2² = 1304223317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1304223301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139605 + ... + 148653.

It is an arithmetic number, because the mean of its divisors is an integer number (109957500).

Almost surely, 2^1304223321 is an apocalyptic number.

It is an amenable number.

1304223321 is a deficient number, since it is larger than the sum of its proper divisors (455096679).

1304223321 is a wasteful number, since it uses less digits than its factorization.

1304223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9608.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1304223321 is about 36114.0321897182. The cubic root of 1304223321 is about 1092.5734779444.

Adding to 1304223321 its reverse (1233224031), we get a palindrome (2537447352).

It can be divided in two parts, 13042 and 23321, that added together give a palindrome (36363).

The spelling of 1304223321 in words is "one billion, three hundred four million, two hundred twenty-three thousand, three hundred twenty-one".