111312442123103 has 6 divisors (see below), whose sum is σ = 120533591174904. Its totient is φ = 102749946575016.

The previous prime is 111312442123087. The next prime is 111312442123123. The reversal of 111312442123103 is 301321244213111.

It is not a de Polignac number, because 111312442123103 - 2⁴ = 111312442123087 is a prime.

It is a super-2 number, since 2×111312442123103² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312442123123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 329326751675 + ... + 329326752012.

It is an arithmetic number, because the mean of its divisors is an integer number (20088931862484).

Almost surely, 2^{111312442123103} is an apocalyptic number.

111312442123103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111312442123103 is a deficient number, since it is larger than the sum of its proper divisors (9221149051801).

111312442123103 is an equidigital number, since it uses as much as digits as its factorization.

111312442123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658653503713 (or 658653503700 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 111312442123103 its reverse (301321244213111), we get a palindrome (412633686336214).

The spelling of 111312442123103 in words is "one hundred eleven trillion, three hundred twelve billion, four hundred forty-two million, one hundred twenty-three thousand, one hundred three".