1161103303 has 8 divisors (see below), whose sum is σ = 1182614400. Its totient is φ = 1139653368.

The previous prime is 1161103297. The next prime is 1161103343. The reversal of 1161103303 is 3033011611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1161103303 - 2⁵ = 1161103271 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 (1161103343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23950 + ... + 53812.

It is an arithmetic number, because the mean of its divisors is an integer number (147826800).

Almost surely, 2^1161103303 is an apocalyptic number.

1161103303 is a deficient number, since it is larger than the sum of its proper divisors (21511097).

1161103303 is an equidigital number, since it uses as much as digits as its factorization.

1161103303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30581.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1161103303 is about 34074.9659280827. The cubic root of 1161103303 is about 1051.0505895886.

Adding to 1161103303 its reverse (3033011611), we get a palindrome (4194114914).

The spelling of 1161103303 in words is "one billion, one hundred sixty-one million, one hundred three thousand, three hundred three".