1323321011 has 4 divisors (see below), whose sum is σ = 1368952800. Its totient is φ = 1277689224.

The previous prime is 1323320989. The next prime is 1323321017. The reversal of 1323321011 is 1101233231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323321011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323321017) 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, 22815851 + ... + 22815908.

It is an arithmetic number, because the mean of its divisors is an integer number (342238200).

Almost surely, 2^1323321011 is an apocalyptic number.

1323321011 is a deficient number, since it is larger than the sum of its proper divisors (45631789).

1323321011 is an equidigital number, since it uses as much as digits as its factorization.

1323321011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45631788.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1323321011 is about 36377.4794481421. The cubic root of 1323321011 is about 1097.8804947447.

Adding to 1323321011 its reverse (1101233231), we get a palindrome (2424554242).

The spelling of 1323321011 in words is "one billion, three hundred twenty-three million, three hundred twenty-one thousand, eleven".