1323131222 has 12 divisors (see below), whose sum is σ = 2308729140. Its totient is φ = 567056196.

The previous prime is 1323131207. The next prime is 1323131237. The reversal of 1323131222 is 2221313231.

It is an interprime number because it is at equal distance from previous prime (1323131207) and next prime (1323131237).

It is a junction number, because it is equal to n+sod(n) for n = 1323131194 and 1323131203.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 6750572 + ... + 6750767.

It is an arithmetic number, because the mean of its divisors is an integer number (192394095).

Almost surely, 2^1323131222 is an apocalyptic number.

1323131222 is a deficient number, since it is larger than the sum of its proper divisors (985597918).

1323131222 is a wasteful number, since it uses less digits than its factorization.

1323131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13501355 (or 13501348 counting only the distinct ones).

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

The square root of 1323131222 is about 36374.8707489113. The cubic root of 1323131222 is about 1097.8280066984.

Adding to 1323131222 its reverse (2221313231), we get a palindrome (3544444453).

The spelling of 1323131222 in words is "one billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-two".