1323135724 has 6 divisors (see below), whose sum is σ = 2315487524. Its totient is φ = 661567860.

The previous prime is 1323135713. The next prime is 1323135727. The reversal of 1323135724 is 4275313231.

It is not an unprimeable number, because it can be changed into a prime (1323135727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165391962 + ... + 165391969.

Almost surely, 2^1323135724 is an apocalyptic number.

It is an amenable number.

1323135724 is a deficient number, since it is larger than the sum of its proper divisors (992351800).

1323135724 is a wasteful number, since it uses less digits than its factorization.

1323135724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330783935 (or 330783933 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 1323135724 is about 36374.9326322400. The cubic root of 1323135724 is about 1097.8292518297.

Adding to 1323135724 its reverse (4275313231), we get a palindrome (5598448955).

The spelling of 1323135724 in words is "one billion, three hundred twenty-three million, one hundred thirty-five thousand, seven hundred twenty-four".