111242142103 has 2 divisors, whose sum is σ = 111242142104. Its totient is φ = 111242142102.

The previous prime is 111242142041. The next prime is 111242142127. The reversal of 111242142103 is 301241242111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111242142103 - 2²⁵ = 111208587671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111242142703) 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 as a sum of consecutive naturals, namely, 55621071051 + 55621071052.

It is an arithmetic number, because the mean of its divisors is an integer number (55621071052).

Almost surely, 2^111242142103 is an apocalyptic number.

111242142103 is a deficient number, since it is larger than the sum of its proper divisors (1).

111242142103 is an equidigital number, since it uses as much as digits as its factorization.

111242142103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111242142103 its reverse (301241242111), we get a palindrome (412483384214).

The spelling of 111242142103 in words is "one hundred eleven billion, two hundred forty-two million, one hundred forty-two thousand, one hundred three".