11100205540203 has 12 divisors (see below), whose sum is σ = 16026332259960. Its totient is φ = 6830895716736.

The previous prime is 11100205540187. The next prime is 11100205540223. The reversal of 11100205540203 is 30204550200111.

It is a happy number.

It is not a de Polignac number, because 11100205540203 - 2⁴ = 11100205540187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11100205540223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10946947758 + ... + 10946948771.

It is an arithmetic number, because the mean of its divisors is an integer number (1335527688330).

Almost surely, 2^{11100205540203} is an apocalyptic number.

11100205540203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11100205540203 is a deficient number, since it is larger than the sum of its proper divisors (4926126719757).

11100205540203 is a wasteful number, since it uses less digits than its factorization.

11100205540203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21893896558 (or 21893896545 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 11100205540203 its reverse (30204550200111), we get a palindrome (41304755740314).

The spelling of 11100205540203 in words is "eleven trillion, one hundred billion, two hundred five million, five hundred forty thousand, two hundred three".