2012112103 has 4 divisors (see below), whose sum is σ = 2118012760. Its totient is φ = 1906211448.

The previous prime is 2012112079. The next prime is 2012112119. The reversal of 2012112103 is 3012112102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2012112103 - 2²⁹ = 1475241191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012112173) 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, 52950300 + ... + 52950337.

It is an arithmetic number, because the mean of its divisors is an integer number (529503190).

Almost surely, 2^2012112103 is an apocalyptic number.

2012112103 is a deficient number, since it is larger than the sum of its proper divisors (105900657).

2012112103 is a wasteful number, since it uses less digits than its factorization.

2012112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105900656.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2012112103 is about 44856.5725730355. The cubic root of 2012112103 is about 1262.4593150697.

Adding to 2012112103 its reverse (3012112102), we get a palindrome (5024224205).

Subtracting 2012112103 from its reverse (3012112102), we obtain a palindrome (999999999).

The spelling of 2012112103 in words is "two billion, twelve million, one hundred twelve thousand, one hundred three".