210240103 has 2 divisors, whose sum is σ = 210240104. Its totient is φ = 210240102.

The previous prime is 210240101. The next prime is 210240133. The reversal of 210240103 is 301042012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210240103 - 2¹ = 210240101 is a prime.

Together with 210240101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210240101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105120051 + 105120052.

It is an arithmetic number, because the mean of its divisors is an integer number (105120052).

Almost surely, 2^210240103 is an apocalyptic number.

210240103 is a deficient number, since it is larger than the sum of its proper divisors (1).

210240103 is an equidigital number, since it uses as much as digits as its factorization.

210240103 is an evil number, because the sum of its binary digits is even.

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

The square root of 210240103 is about 14499.6587201217. The cubic root of 210240103 is about 594.6186412965.

Adding to 210240103 its reverse (301042012), we get a palindrome (511282115).

The spelling of 210240103 in words is "two hundred ten million, two hundred forty thousand, one hundred three".