210242103 has 16 divisors (see below), whose sum is σ = 300420096. Its totient is φ = 130442400.

The previous prime is 210242089. The next prime is 210242159. The reversal of 210242103 is 301242012.

It is not a de Polignac number, because 210242103 - 2¹⁰ = 210241079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210240103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38623 + ... + 43728.

It is an arithmetic number, because the mean of its divisors is an integer number (18776256).

Almost surely, 2^210242103 is an apocalyptic number.

210242103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

210242103 is a deficient number, since it is larger than the sum of its proper divisors (90177993).

210242103 is a wasteful number, since it uses less digits than its factorization.

210242103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82414.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 210242103 is about 14499.7276870981. The cubic root of 210242103 is about 594.6205268129.

Adding to 210242103 its reverse (301242012), we get a palindrome (511484115).

Subtracting 210242103 from its reverse (301242012), we obtain a palindrome (90999909).

The spelling of 210242103 in words is "two hundred ten million, two hundred forty-two thousand, one hundred three".