1323131241 has 4 divisors (see below), whose sum is σ = 1764174992. Its totient is φ = 882087492.

The previous prime is 1323131237. The next prime is 1323131269. The reversal of 1323131241 is 1421313231.

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.

It is not a de Polignac number, because 1323131241 - 2² = 1323131237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323130241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220521871 + ... + 220521876.

It is an arithmetic number, because the mean of its divisors is an integer number (441043748).

Almost surely, 2^1323131241 is an apocalyptic number.

It is an amenable number.

1323131241 is a deficient number, since it is larger than the sum of its proper divisors (441043751).

1323131241 is an equidigital number, since it uses as much as digits as its factorization.

1323131241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441043750.

The product of its digits is 432, while the sum is 21.

The square root of 1323131241 is about 36374.8710100806. The cubic root of 1323131241 is about 1097.8280119533.

Adding to 1323131241 its reverse (1421313231), we get a palindrome (2744444472).

The spelling of 1323131241 in words is "one billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred forty-one".