11031123303 has 12 divisors (see below), whose sum is σ = 16772468440. Its totient is φ = 6967025136.

The previous prime is 11031123241. The next prime is 11031123329. The reversal of 11031123303 is 30332113011.

It is a happy number.

It is not a de Polignac number, because 11031123303 - 2¹⁰ = 11031122279 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 (11031123703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32254576 + ... + 32254917.

Almost surely, 2^11031123303 is an apocalyptic number.

11031123303 is a deficient number, since it is larger than the sum of its proper divisors (5741345137).

11031123303 is a wasteful number, since it uses less digits than its factorization.

11031123303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64509518 (or 64509515 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 11031123303 its reverse (30332113011), we get a palindrome (41363236314).

The spelling of 11031123303 in words is "eleven billion, thirty-one million, one hundred twenty-three thousand, three hundred three".