1103323312 has 80 divisors (see below), whose sum is σ = 2769544960. Its totient is φ = 413496576.

The previous prime is 1103323301. The next prime is 1103323339. The reversal of 1103323312 is 2133233011.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1103323312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7723 + ... + 47605.

It is an arithmetic number, because the mean of its divisors is an integer number (34619312).

Almost surely, 2^1103323312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103323312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1384772480).

1103323312 is an abundant number, since it is smaller than the sum of its proper divisors (1666221648).

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

1103323312 is a wasteful number, since it uses less digits than its factorization.

1103323312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39930 (or 39924 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1103323312 is about 33216.3109330341. The cubic root of 1103323312 is about 1033.3186426863.

Adding to 1103323312 its reverse (2133233011), we get a palindrome (3236556323).

It can be divided in two parts, 1103 and 323312, that added together give a triangular number (324415 = T₈₀₅).

The spelling of 1103323312 in words is "one billion, one hundred three million, three hundred twenty-three thousand, three hundred twelve".