1115332313 has 4 divisors (see below), whose sum is σ = 1117473588. Its totient is φ = 1113191040.

The previous prime is 1115332301. The next prime is 1115332321. The reversal of 1115332313 is 3132335111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154828249 + 960504064 = 12443^2 + 30992^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115332313 - 2⁶ = 1115332249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1115332333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069856 + ... + 1070897.

It is an arithmetic number, because the mean of its divisors is an integer number (279368397).

Almost surely, 2^1115332313 is an apocalyptic number.

It is an amenable number.

1115332313 is a deficient number, since it is larger than the sum of its proper divisors (2141275).

1115332313 is an equidigital number, since it uses as much as digits as its factorization.

1115332313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141274.

The product of its digits is 810, while the sum is 23.

The square root of 1115332313 is about 33396.5913380393. The cubic root of 1115332313 is about 1037.0541367296.

Adding to 1115332313 its reverse (3132335111), we get a palindrome (4247667424).

The spelling of 1115332313 in words is "one billion, one hundred fifteen million, three hundred thirty-two thousand, three hundred thirteen".