11320123203 has 12 divisors (see below), whose sum is σ = 16428786088. Its totient is φ = 7510980960.

The previous prime is 11320123181. The next prime is 11320123207. The reversal of 11320123203 is 30232102311.

11320123203 is a `hidden beast` number, since 11 + 320 + 12 + 320 + 3 = 666.

It is not a de Polignac number, because 11320123203 - 2⁹ = 11320122691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11320123207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2978650 + ... + 2982447.

Almost surely, 2^11320123203 is an apocalyptic number.

11320123203 is a deficient number, since it is larger than the sum of its proper divisors (5108662885).

11320123203 is a wasteful number, since it uses less digits than its factorization.

11320123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961314 (or 5961311 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11320123203 its reverse (30232102311), we get a palindrome (41552225514).

The spelling of 11320123203 in words is "eleven billion, three hundred twenty million, one hundred twenty-three thousand, two hundred three".