2103443 has 4 divisors (see below), whose sum is σ = 2171328. Its totient is φ = 2035560.

The previous prime is 2103407. The next prime is 2103449. The reversal of 2103443 is 3443012.

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 2103443 - 2⁸ = 2103187 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 0 + 3 + 4 + 4⁶ + 3⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33896 + ... + 33957.

It is an arithmetic number, because the mean of its divisors is an integer number (542832).

2^2103443 is an apocalyptic number.

2103443 is a deficient number, since it is larger than the sum of its proper divisors (67885).

2103443 is an equidigital number, since it uses as much as digits as its factorization.

2103443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67884.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2103443 is about 1450.3251359609. The cubic root of 2103443 is about 128.1278629541.

Adding to 2103443 its reverse (3443012), we get a palindrome (5546455).

The spelling of 2103443 in words is "two million, one hundred three thousand, four hundred forty-three".