13111100103203 has 4 divisors (see below), whose sum is σ = 13129134629520. Its totient is φ = 13093065576888.

The previous prime is 13111100103193. The next prime is 13111100103221. The reversal of 13111100103203 is 30230100111131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13111100103203 - 2¹⁶ = 13111100037667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111100103253) 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, 9017262068 + ... + 9017263521.

It is an arithmetic number, because the mean of its divisors is an integer number (3282283657380).

Almost surely, 2^{13111100103203} is an apocalyptic number.

13111100103203 is a deficient number, since it is larger than the sum of its proper divisors (18034526317).

13111100103203 is an equidigital number, since it uses as much as digits as its factorization.

13111100103203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18034526316.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 13111100103203 its reverse (30230100111131), we get a palindrome (43341200214334).

The spelling of 13111100103203 in words is "thirteen trillion, one hundred eleven billion, one hundred million, one hundred three thousand, two hundred three".