11101111203 has 16 divisors (see below), whose sum is σ = 18217208576. Its totient is φ = 5855531040.

The previous prime is 11101111183. The next prime is 11101111261. The reversal of 11101111203 is 30211110111.

11101111203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11101111203 - 2⁸ = 11101110947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11101111003) 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 15 ways as a sum of consecutive naturals, for example, 20331433 + ... + 20331978.

It is an arithmetic number, because the mean of its divisors is an integer number (1138575536).

Almost surely, 2^11101111203 is an apocalyptic number.

11101111203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11101111203 is a deficient number, since it is larger than the sum of its proper divisors (7116097373).

11101111203 is a wasteful number, since it uses less digits than its factorization.

11101111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40663434.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11101111203 its reverse (30211110111), we get a palindrome (41312221314).

The spelling of 11101111203 in words is "eleven billion, one hundred one million, one hundred eleven thousand, two hundred three".