1103323513 has 4 divisors (see below), whose sum is σ = 1103471460. Its totient is φ = 1103175568.

The previous prime is 1103323469. The next prime is 1103323517. The reversal of 1103323513 is 3153233011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3153233011 = 131 ⋅24070481.

It can be written as a sum of positive squares in 2 ways, for example, as 489869689 + 613453824 = 22133^2 + 24768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103323513 is a prime.

It is a super-2 number, since 2×1103323513² = 2434645548677322338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103323517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62158 + ... + 77911.

It is an arithmetic number, because the mean of its divisors is an integer number (275867865).

Almost surely, 2^1103323513 is an apocalyptic number.

It is an amenable number.

1103323513 is a deficient number, since it is larger than the sum of its proper divisors (147947).

1103323513 is an equidigital number, since it uses as much as digits as its factorization.

1103323513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147946.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 1103323513 is about 33216.3139586559. The cubic root of 1103323513 is about 1033.3187054352.

Adding to 1103323513 its reverse (3153233011), we get a palindrome (4256556524).

The spelling of 1103323513 in words is "one billion, one hundred three million, three hundred twenty-three thousand, five hundred thirteen".