1323120233 has 6 divisors (see below), whose sum is σ = 1396423674. Its totient is φ = 1253481984.

The previous prime is 1323120229. The next prime is 1323120247. The reversal of 1323120233 is 3320213231.

It can be written as a sum of positive squares in only one way, i.e., 1319723584 + 3396649 = 36328^2 + 1843^2 .

It is not a de Polignac number, because 1323120233 - 2² = 1323120229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323120223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1832216 + ... + 1832937.

It is an arithmetic number, because the mean of its divisors is an integer number (232737279).

Almost surely, 2^1323120233 is an apocalyptic number.

It is an amenable number.

1323120233 is a deficient number, since it is larger than the sum of its proper divisors (73303441).

1323120233 is an equidigital number, since it uses as much as digits as its factorization.

1323120233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665191 (or 3665172 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1323120233 is about 36374.7196965145. The cubic root of 1323120233 is about 1097.8249674269.

Adding to 1323120233 its reverse (3320213231), we get a palindrome (4643333464).

The spelling of 1323120233 in words is "one billion, three hundred twenty-three million, one hundred twenty thousand, two hundred thirty-three".