2112403 has 8 divisors (see below), whose sum is σ = 2255472. Its totient is φ = 1971456.

The previous prime is 2112353. The next prime is 2112413. The reversal of 2112403 is 3042112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2112403 is a prime.

It is a Duffinian number.

2112403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2112413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1876 + ... + 2782.

It is an arithmetic number, because the mean of its divisors is an integer number (281934).

2^2112403 is an apocalyptic number.

2112403 is a deficient number, since it is larger than the sum of its proper divisors (143069).

2112403 is a wasteful number, since it uses less digits than its factorization.

2112403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2112403 is about 1453.4108159774. The cubic root of 2112403 is about 128.3095332638.

Adding to 2112403 its reverse (3042112), we get a palindrome (5154515).

The spelling of 2112403 in words is "two million, one hundred twelve thousand, four hundred three".