2120210003 has 2 divisors, whose sum is σ = 2120210004. Its totient is φ = 2120210002.

The previous prime is 2120209969. The next prime is 2120210051. The reversal of 2120210003 is 3000120212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120210003 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120210203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060105001 + 1060105002.

It is an arithmetic number, because the mean of its divisors is an integer number (1060105002).

Almost surely, 2^2120210003 is an apocalyptic number.

2120210003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120210003 is an equidigital number, since it uses as much as digits as its factorization.

2120210003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2120210003 is about 46045.7381632654. The cubic root of 2120210003 is about 1284.6740740009.

Adding to 2120210003 its reverse (3000120212), we get a palindrome (5120330215).

The spelling of 2120210003 in words is "two billion, one hundred twenty million, two hundred ten thousand, three".