2112112003 has 4 divisors (see below), whose sum is σ = 2112687928. Its totient is φ = 2111536080.

The previous prime is 2112111979. The next prime is 2112112049. The reversal of 2112112003 is 3002112112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112112003 is a prime.

It is a super-2 number, since 2×2112112003² = 8922034226433344018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112112073) 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, 282426 + ... + 289807.

It is an arithmetic number, because the mean of its divisors is an integer number (528171982).

Almost surely, 2^2112112003 is an apocalyptic number.

2112112003 is a deficient number, since it is larger than the sum of its proper divisors (575925).

2112112003 is an equidigital number, since it uses as much as digits as its factorization.

2112112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575924.

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

The square root of 2112112003 is about 45957.7197323801. The cubic root of 2112112003 is about 1283.0364117406.

Adding to 2112112003 its reverse (3002112112), we get a palindrome (5114224115).

It can be divided in two parts, 21121 and 12003, that added together give a square (33124 = 182²).

The spelling of 2112112003 in words is "two billion, one hundred twelve million, one hundred twelve thousand, three".