111000020103 has 12 divisors (see below), whose sum is σ = 183238128528. Its totient is φ = 63428582880.

The previous prime is 111000020077. The next prime is 111000020123. The reversal of 111000020103 is 301020000111.

It is not a de Polignac number, because 111000020103 - 2⁸ = 111000019847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000020123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 880952478 + ... + 880952603.

It is an arithmetic number, because the mean of its divisors is an integer number (15269844044).

Almost surely, 2^111000020103 is an apocalyptic number.

111000020103 is a deficient number, since it is larger than the sum of its proper divisors (72238108425).

111000020103 is a wasteful number, since it uses less digits than its factorization.

111000020103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761905094 (or 1761905091 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 111000020103 its reverse (301020000111), we get a palindrome (412020020214).

The spelling of 111000020103 in words is "one hundred eleven billion, twenty thousand, one hundred three".