1323313444 has 24 divisors (see below), whose sum is σ = 2451176000. Its totient is φ = 623363040.

The previous prime is 1323313427. The next prime is 1323313447. The reversal of 1323313444 is 4443133231.

It is a super-2 number, since 2×1323313444² = 3502316942142282272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323313447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34344 + ... + 61855.

Almost surely, 2^1323313444 is an apocalyptic number.

It is an amenable number.

1323313444 is a deficient number, since it is larger than the sum of its proper divisors (1127862556).

1323313444 is a wasteful number, since it uses less digits than its factorization.

1323313444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96403 (or 96401 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

The square root of 1323313444 is about 36377.3754413372. The cubic root of 1323313444 is about 1097.8784021112.

Adding to 1323313444 its reverse (4443133231), we get a palindrome (5766446675).

The spelling of 1323313444 in words is "one billion, three hundred twenty-three million, three hundred thirteen thousand, four hundred forty-four".