2100210403 has 2 divisors, whose sum is σ = 2100210404. Its totient is φ = 2100210402.

The previous prime is 2100210397. The next prime is 2100210439. The reversal of 2100210403 is 3040120012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100210403 - 2¹³ = 2100202211 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100210493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050105201 + 1050105202.

It is an arithmetic number, because the mean of its divisors is an integer number (1050105202).

Almost surely, 2^2100210403 is an apocalyptic number.

2100210403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100210403 is an equidigital number, since it uses as much as digits as its factorization.

2100210403 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2100210403 is about 45828.0525769970. The cubic root of 2100210403 is about 1280.6219314478.

Adding to 2100210403 its reverse (3040120012), we get a palindrome (5140330415).

The spelling of 2100210403 in words is "two billion, one hundred million, two hundred ten thousand, four hundred three".