1323583263 has 24 divisors (see below), whose sum is σ = 2130850800. Its totient is φ = 786772224.

The previous prime is 1323583253. The next prime is 1323583291. The reversal of 1323583263 is 3623853231.

1323583263 is a `hidden beast` number, since 1 + 323 + 5 + 8 + 326 + 3 = 666.

It is not a de Polignac number, because 1323583263 - 2⁶ = 1323583199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323583213) 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 23 ways as a sum of consecutive naturals, for example, 224748 + ... + 230561.

It is an arithmetic number, because the mean of its divisors is an integer number (88785450).

Almost surely, 2^1323583263 is an apocalyptic number.

1323583263 is a deficient number, since it is larger than the sum of its proper divisors (807267537).

1323583263 is a wasteful number, since it uses less digits than its factorization.

1323583263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455351 (or 455348 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 1323583263 is about 36381.0838623590. The cubic root of 1323583263 is about 1097.9530149005.

The spelling of 1323583263 in words is "one billion, three hundred twenty-three million, five hundred eighty-three thousand, two hundred sixty-three".