11403311203 has 4 divisors (see below), whose sum is σ = 11403594720. Its totient is φ = 11403027688.

The previous prime is 11403311201. The next prime is 11403311209. The reversal of 11403311203 is 30211330411.

11403311203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30211330411 = 17 ⋅1777137083.

It is a cyclic number.

It is not a de Polignac number, because 11403311203 - 2¹ = 11403311201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11403311201) 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, 68968 + ... + 166021.

It is an arithmetic number, because the mean of its divisors is an integer number (2850898680).

Almost surely, 2^11403311203 is an apocalyptic number.

11403311203 is a deficient number, since it is larger than the sum of its proper divisors (283517).

11403311203 is an equidigital number, since it uses as much as digits as its factorization.

11403311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283516.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11403311203 its reverse (30211330411), we get a palindrome (41614641614).

The spelling of 11403311203 in words is "eleven billion, four hundred three million, three hundred eleven thousand, two hundred three".