1103320321 has 8 divisors (see below), whose sum is σ = 1126608264. Its totient is φ = 1080253440.

The previous prime is 1103320303. The next prime is 1103320331. The reversal of 1103320321 is 1230233011.

It can be written as a sum of positive squares in 4 ways, for example, as 343546225 + 759774096 = 18535^2 + 27564^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1103320321 - 2⁷ = 1103320193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103320295 and 1103320304.

It is not an unprimeable number, because it can be changed into a prime (1103320301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45160 + ... + 65161.

It is an arithmetic number, because the mean of its divisors is an integer number (140826033).

Almost surely, 2^1103320321 is an apocalyptic number.

It is an amenable number.

1103320321 is a deficient number, since it is larger than the sum of its proper divisors (23287943).

1103320321 is a wasteful number, since it uses less digits than its factorization.

1103320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110531.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1103320321 is about 33216.2659099424. The cubic root of 1103320321 is about 1033.3177089440.

Adding to 1103320321 its reverse (1230233011), we get a palindrome (2333553332).

The spelling of 1103320321 in words is "one billion, one hundred three million, three hundred twenty thousand, three hundred twenty-one".