2105003 has 2 divisors, whose sum is σ = 2105004. Its totient is φ = 2105002.

The previous prime is 2104987. The next prime is 2105009. The reversal of 2105003 is 3005012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2105003 - 2⁴ = 2104987 is a prime.

It is not a weakly prime, because it can be changed into another prime (2105009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052501 + 1052502.

It is an arithmetic number, because the mean of its divisors is an integer number (1052502).

2^2105003 is an apocalyptic number.

2105003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105003 is an equidigital number, since it uses as much as digits as its factorization.

2105003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 2105003 is about 1450.8628467226. The cubic root of 2105003 is about 128.1595300943.

Subtracting 2105003 from its reverse (3005012), we obtain a palindrome (900009).

The spelling of 2105003 in words is "two million, one hundred five thousand, three".