1323523653 has 8 divisors (see below), whose sum is σ = 1788872448. Its totient is φ = 870261984.

The previous prime is 1323523639. The next prime is 1323523693. The reversal of 1323523653 is 3563253231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1323523653 - 2⁶ = 1323523589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323523693) 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, 3021525 + ... + 3021962.

It is an arithmetic number, because the mean of its divisors is an integer number (223609056).

Almost surely, 2^1323523653 is an apocalyptic number.

It is an amenable number.

1323523653 is a deficient number, since it is larger than the sum of its proper divisors (465348795).

1323523653 is an equidigital number, since it uses as much as digits as its factorization.

1323523653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6043563.

The product of its digits is 48600, while the sum is 33.

The square root of 1323523653 is about 36380.2646087133. The cubic root of 1323523653 is about 1097.9365318771.

Adding to 1323523653 its reverse (3563253231), we get a palindrome (4886776884).

The spelling of 1323523653 in words is "one billion, three hundred twenty-three million, five hundred twenty-three thousand, six hundred fifty-three".