12103344111 has 4 divisors (see below), whose sum is σ = 16137792152. Its totient is φ = 8068896072.

The previous prime is 12103344101. The next prime is 12103344151. The reversal of 12103344111 is 11144330121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11144330121 = 3 ⋅3714776707.

It is not a de Polignac number, because 12103344111 - 2⁵ = 12103344079 is a prime.

It is a super-3 number, since 3×12103344111³ (a number of 31 digits) contains 333 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 (12103344101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017224016 + ... + 2017224021.

It is an arithmetic number, because the mean of its divisors is an integer number (4034448038).

Almost surely, 2^12103344111 is an apocalyptic number.

12103344111 is a deficient number, since it is larger than the sum of its proper divisors (4034448041).

12103344111 is an equidigital number, since it uses as much as digits as its factorization.

12103344111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034448040.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12103344111 its reverse (11144330121), we get a palindrome (23247674232).

The spelling of 12103344111 in words is "twelve billion, one hundred three million, three hundred forty-four thousand, one hundred eleven".