1323131204 has 24 divisors (see below), whose sum is σ = 2343639648. Its totient is φ = 653567040.

The previous prime is 1323131197. The next prime is 1323131207. The reversal of 1323131204 is 4021313231.

It is not an unprimeable number, because it can be changed into a prime (1323131207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109907 + ... + 121349.

It is an arithmetic number, because the mean of its divisors is an integer number (97651652).

Almost surely, 2^1323131204 is an apocalyptic number.

It is an amenable number.

1323131204 is a deficient number, since it is larger than the sum of its proper divisors (1020508444).

1323131204 is a wasteful number, since it uses less digits than its factorization.

1323131204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11795 (or 11793 counting only the distinct ones).

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

The square root of 1323131204 is about 36374.8705014877. The cubic root of 1323131204 is about 1097.8280017201.

Adding to 1323131204 its reverse (4021313231), we get a palindrome (5344444435).

The spelling of 1323131204 in words is "one billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred four".