2100440003 has 2 divisors, whose sum is σ = 2100440004. Its totient is φ = 2100440002.

The previous prime is 2100439997. The next prime is 2100440029. The reversal of 2100440003 is 3000440012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100440003 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2100440003.

It is not a weakly prime, because it can be changed into another prime (2100440053) 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 as a sum of consecutive naturals, namely, 1050220001 + 1050220002.

It is an arithmetic number, because the mean of its divisors is an integer number (1050220002).

Almost surely, 2^2100440003 is an apocalyptic number.

2100440003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100440003 is an equidigital number, since it uses as much as digits as its factorization.

2100440003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2100440003 is about 45830.5575244290. The cubic root of 2100440003 is about 1280.6685966265.

Adding to 2100440003 its reverse (3000440012), we get a palindrome (5100880015).

Subtracting 2100440003 from its reverse (3000440012), we obtain a palindrome (900000009).

The spelling of 2100440003 in words is "two billion, one hundred million, four hundred forty thousand, three".