111100121102103 has 48 divisors (see below), whose sum is σ = 172774946429280. Its totient is φ = 63317664748800.

The previous prime is 111100121102101. The next prime is 111100121102141. The reversal of 111100121102103 is 301201121001111.

It is not a de Polignac number, because 111100121102103 - 2¹ = 111100121102101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100121102101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 813131133 + ... + 813267753.

It is an arithmetic number, because the mean of its divisors is an integer number (3599478050610).

Almost surely, 2^{111100121102103} is an apocalyptic number.

111100121102103 is a deficient number, since it is larger than the sum of its proper divisors (61674825327177).

111100121102103 is a wasteful number, since it uses less digits than its factorization.

111100121102103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151248 (or 151241 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 111100121102103 its reverse (301201121001111), we get a palindrome (412301242103214).

The spelling of 111100121102103 in words is "one hundred eleven trillion, one hundred billion, one hundred twenty-one million, one hundred two thousand, one hundred three".