199100111103 has 28 divisors (see below), whose sum is σ = 298577520640. Its totient is φ = 132704990496.

The previous prime is 199100111101. The next prime is 199100111143. The reversal of 199100111103 is 301111001991.

It is not a de Polignac number, because 199100111103 - 2¹ = 199100111101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199100111101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3705075 + ... + 3758427.

It is an arithmetic number, because the mean of its divisors is an integer number (10663482880).

Almost surely, 2^199100111103 is an apocalyptic number.

199100111103 is a deficient number, since it is larger than the sum of its proper divisors (99477409537).

199100111103 is an frugal number, since it uses more digits than its factorization.

199100111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58490 (or 58475 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 27.

The spelling of 199100111103 in words is "one hundred ninety-nine billion, one hundred million, one hundred eleven thousand, one hundred three".