2112432103 has 4 divisors (see below), whose sum is σ = 2223612760. Its totient is φ = 2001251448.

The previous prime is 2112432089. The next prime is 2112432107. The reversal of 2112432103 is 3012342112.

It is a happy number.

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 2112432103 - 2²⁹ = 1575561191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 111180637 = 2112432103 / (2 + 1 + 1 + 2 + 4 + 3 + 2 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112432107) 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, 55590300 + ... + 55590337.

It is an arithmetic number, because the mean of its divisors is an integer number (555903190).

Almost surely, 2^2112432103 is an apocalyptic number.

2112432103 is a deficient number, since it is larger than the sum of its proper divisors (111180657).

2112432103 is a wasteful number, since it uses less digits than its factorization.

2112432103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111180656.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2112432103 is about 45961.2021492041. The cubic root of 2112432103 is about 1283.1012250978.

Adding to 2112432103 its reverse (3012342112), we get a palindrome (5124774215).

The spelling of 2112432103 in words is "two billion, one hundred twelve million, four hundred thirty-two thousand, one hundred three".