13111130203 has 4 divisors (see below), whose sum is σ = 13115166408. Its totient is φ = 13107094000.

The previous prime is 13111130143. The next prime is 13111130257. The reversal of 13111130203 is 30203111131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30203111131 = 227 ⋅133053353.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111130203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111130003) 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, 2013226 + ... + 2019727.

It is an arithmetic number, because the mean of its divisors is an integer number (3278791602).

Almost surely, 2^13111130203 is an apocalyptic number.

13111130203 is a deficient number, since it is larger than the sum of its proper divisors (4036205).

13111130203 is an equidigital number, since it uses as much as digits as its factorization.

13111130203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036204.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 13111130203 its reverse (30203111131), we get a palindrome (43314241334).

The spelling of 13111130203 in words is "thirteen billion, one hundred eleven million, one hundred thirty thousand, two hundred three".