1320324233 has 4 divisors (see below), whose sum is σ = 1320430848. Its totient is φ = 1320217620.

The previous prime is 1320324221. The next prime is 1320324251. The reversal of 1320324233 is 3324230231.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1320324233 - 2²⁴ = 1303547017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1320324199 and 1320324208.

It is not an unprimeable number, because it can be changed into a prime (1320324263) 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, 31853 + ... + 60458.

It is an arithmetic number, because the mean of its divisors is an integer number (330107712).

Almost surely, 2^1320324233 is an apocalyptic number.

It is an amenable number.

1320324233 is a deficient number, since it is larger than the sum of its proper divisors (106615).

1320324233 is an equidigital number, since it uses as much as digits as its factorization.

1320324233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106614.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 1320324233 is about 36336.2660850011. The cubic root of 1320324233 is about 1097.0511190570.

Adding to 1320324233 its reverse (3324230231), we get a palindrome (4644554464).

The spelling of 1320324233 in words is "one billion, three hundred twenty million, three hundred twenty-four thousand, two hundred thirty-three".