210243424243103 has 4 divisors (see below), whose sum is σ = 210385193242728. Its totient is φ = 210101655243480.

The previous prime is 210243424243087. The next prime is 210243424243133. The reversal of 210243424243103 is 301342424342012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210243424243103 - 2⁴ = 210243424243087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210243424243133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70884497588 + ... + 70884500553.

It is an arithmetic number, because the mean of its divisors is an integer number (52596298310682).

Almost surely, 2^{210243424243103} is an apocalyptic number.

210243424243103 is a deficient number, since it is larger than the sum of its proper divisors (141768999625).

210243424243103 is a wasteful number, since it uses less digits than its factorization.

210243424243103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141768999624.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 210243424243103 its reverse (301342424342012), we get a palindrome (511585848585115).

The spelling of 210243424243103 in words is "two hundred ten trillion, two hundred forty-three billion, four hundred twenty-four million, two hundred forty-three thousand, one hundred three".