1323903312 has 40 divisors (see below), whose sum is σ = 3800094080. Its totient is φ = 441300960.

The previous prime is 1323903289. The next prime is 1323903319. The reversal of 1323903312 is 2133093231.

1323903312 is a `hidden beast` number, since 1 + 323 + 9 + 0 + 331 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323903319) 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, 1531864 + ... + 1532727.

It is an arithmetic number, because the mean of its divisors is an integer number (95002352).

Almost surely, 2^1323903312 is an apocalyptic number.

1323903312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323903312 is an abundant number, since it is smaller than the sum of its proper divisors (2476190768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323903312 is a wasteful number, since it uses less digits than its factorization.

1323903312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064608 (or 3064596 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 1323903312 is about 36385.4821597846. The cubic root of 1323903312 is about 1098.0415045973.

Adding to 1323903312 its reverse (2133093231), we get a palindrome (3456996543).

The spelling of 1323903312 in words is "one billion, three hundred twenty-three million, nine hundred three thousand, three hundred twelve".