1323135532 has 24 divisors (see below), whose sum is σ = 2338995456. Its totient is φ = 654866688.

The previous prime is 1323135523. The next prime is 1323135533. The reversal of 1323135532 is 2355313231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323135532.

It is not an unprimeable number, because it can be changed into a prime (1323135533) 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 7 ways as a sum of consecutive naturals, for example, 489978 + ... + 492670.

It is an arithmetic number, because the mean of its divisors is an integer number (97458144).

Almost surely, 2^1323135532 is an apocalyptic number.

It is an amenable number.

1323135532 is a deficient number, since it is larger than the sum of its proper divisors (1015859924).

1323135532 is a wasteful number, since it uses less digits than its factorization.

1323135532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897 (or 3895 counting only the distinct ones).

The product of its digits is 8100, while the sum is 28.

The square root of 1323135532 is about 36374.9299930598. The cubic root of 1323135532 is about 1097.8291987277.

Adding to 1323135532 its reverse (2355313231), we get a palindrome (3678448763).

The spelling of 1323135532 in words is "one billion, three hundred twenty-three million, one hundred thirty-five thousand, five hundred thirty-two".