2112100003 has 4 divisors (see below), whose sum is σ = 2274569248. Its totient is φ = 1949630760.

The previous prime is 2112099961. The next prime is 2112100013. The reversal of 2112100003 is 3000012112.

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 2112100003 - 2²⁹ = 1575229091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112100013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81234603 + ... + 81234628.

It is an arithmetic number, because the mean of its divisors is an integer number (568642312).

Almost surely, 2^2112100003 is an apocalyptic number.

2112100003 is a deficient number, since it is larger than the sum of its proper divisors (162469245).

2112100003 is a wasteful number, since it uses less digits than its factorization.

2112100003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162469244.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2112100003 is about 45957.5891774144. The cubic root of 2112100003 is about 1283.0339818716.

Adding to 2112100003 its reverse (3000012112), we get a palindrome (5112112115).

The spelling of 2112100003 in words is "two billion, one hundred twelve million, one hundred thousand, three".