1165063303 has 4 divisors (see below), whose sum is σ = 1173957048. Its totient is φ = 1156169560.

The previous prime is 1165063271. The next prime is 1165063327. The reversal of 1165063303 is 3033605611.

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 1165063303 - 2⁵ = 1165063271 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 (1165063343) 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, 4446676 + ... + 4446937.

It is an arithmetic number, because the mean of its divisors is an integer number (293489262).

Almost surely, 2^1165063303 is an apocalyptic number.

1165063303 is a deficient number, since it is larger than the sum of its proper divisors (8893745).

1165063303 is an equidigital number, since it uses as much as digits as its factorization.

1165063303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8893744.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 1165063303 is about 34133.0236428008. The cubic root of 1165063303 is about 1052.2441203503.

Adding to 1165063303 its reverse (3033605611), we get a palindrome (4198668914).

The spelling of 1165063303 in words is "one billion, one hundred sixty-five million, sixty-three thousand, three hundred three".