1115403343 has 4 divisors (see below), whose sum is σ = 1151384128. Its totient is φ = 1079422560.

The previous prime is 1115403329. The next prime is 1115403347. The reversal of 1115403343 is 3433045111.

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

It is a cyclic number.

It is not a de Polignac number, because 1115403343 - 2¹⁷ = 1115272271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115403347) 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, 17990346 + ... + 17990407.

It is an arithmetic number, because the mean of its divisors is an integer number (287846032).

Almost surely, 2^1115403343 is an apocalyptic number.

1115403343 is a deficient number, since it is larger than the sum of its proper divisors (35980785).

1115403343 is an equidigital number, since it uses as much as digits as its factorization.

1115403343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35980784.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1115403343 is about 33397.6547529913. The cubic root of 1115403343 is about 1037.0761512122.

Adding to 1115403343 its reverse (3433045111), we get a palindrome (4548448454).

The spelling of 1115403343 in words is "one billion, one hundred fifteen million, four hundred three thousand, three hundred forty-three".