1103321313 has 12 divisors (see below), whose sum is σ = 1600648660. Its totient is φ = 732334176.

The previous prime is 1103321311. The next prime is 1103321383. The reversal of 1103321313 is 3131233011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 763582689 + 339738624 = 27633^2 + 18432^2 .

It is not a de Polignac number, because 1103321313 - 2¹ = 1103321311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103321311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265606 + ... + 269727.

Almost surely, 2^1103321313 is an apocalyptic number.

It is an amenable number.

1103321313 is a deficient number, since it is larger than the sum of its proper divisors (497327347).

1103321313 is a wasteful number, since it uses less digits than its factorization.

1103321313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535568 (or 535565 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1103321313 is about 33216.2808423821. The cubic root of 1103321313 is about 1033.3180186307.

Adding to 1103321313 its reverse (3131233011), we get a palindrome (4234554324).

The spelling of 1103321313 in words is "one billion, one hundred three million, three hundred twenty-one thousand, three hundred thirteen".