1321132304 has 10 divisors (see below), whose sum is σ = 2559693870. Its totient is φ = 660566144.

The previous prime is 1321132289. The next prime is 1321132313. The reversal of 1321132304 is 4032311231.

It can be written as a sum of positive squares in only one way, i.e., 1284505600 + 36626704 = 35840^2 + 6052^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41285369 + ... + 41285400.

It is an arithmetic number, because the mean of its divisors is an integer number (255969387).

Almost surely, 2^1321132304 is an apocalyptic number.

It is an amenable number.

1321132304 is a deficient number, since it is larger than the sum of its proper divisors (1238561566).

1321132304 is an equidigital number, since it uses as much as digits as its factorization.

1321132304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82570777 (or 82570771 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1321132304 is about 36347.3837297817. The cubic root of 1321132304 is about 1097.2748808629.

Adding to 1321132304 its reverse (4032311231), we get a palindrome (5353443535).

The spelling of 1321132304 in words is "one billion, three hundred twenty-one million, one hundred thirty-two thousand, three hundred four".