111003012103 has 2 divisors, whose sum is σ = 111003012104. Its totient is φ = 111003012102.

The previous prime is 111003012083. The next prime is 111003012139. The reversal of 111003012103 is 301210300111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111003012103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111003012803) 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 as a sum of consecutive naturals, namely, 55501506051 + 55501506052.

It is an arithmetic number, because the mean of its divisors is an integer number (55501506052).

Almost surely, 2^111003012103 is an apocalyptic number.

111003012103 is a deficient number, since it is larger than the sum of its proper divisors (1).

111003012103 is an equidigital number, since it uses as much as digits as its factorization.

111003012103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 111003012103 its reverse (301210300111), we get a palindrome (412213312214).

It can be divided in two parts, 11100 and 3012103, that added together give a palindrome (3023203).

The spelling of 111003012103 in words is "one hundred eleven billion, three million, twelve thousand, one hundred three".