1321110304 has 24 divisors (see below), whose sum is σ = 2630165580. Its totient is φ = 653131776.

The previous prime is 1321110281. The next prime is 1321110311. The reversal of 1321110304 is 4030111231.

It can be written as a sum of positive squares in 2 ways, for example, as 1027330704 + 293779600 = 32052^2 + 17140^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229089 + ... + 234784.

Almost surely, 2^1321110304 is an apocalyptic number.

It is an amenable number.

1321110304 is a deficient number, since it is larger than the sum of its proper divisors (1309055276).

1321110304 is an equidigital number, since it uses as much as digits as its factorization.

1321110304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463972 (or 463964 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1321110304 is about 36347.0810932597. The cubic root of 1321110304 is about 1097.2687900822.

Adding to 1321110304 its reverse (4030111231), we get a palindrome (5351221535).

The spelling of 1321110304 in words is "one billion, three hundred twenty-one million, one hundred ten thousand, three hundred four".