210002121242303 has 4 divisors (see below), whose sum is σ = 226156130568648. Its totient is φ = 193848111915960.

The previous prime is 210002121242269. The next prime is 210002121242311. The reversal of 210002121242303 is 303242121200012.

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 210002121242303 - 2¹⁸ = 210002120980159 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 (210002121242383) 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, 8077004663153 + ... + 8077004663178.

It is an arithmetic number, because the mean of its divisors is an integer number (56539032642162).

Almost surely, 2^{210002121242303} is an apocalyptic number.

210002121242303 is a deficient number, since it is larger than the sum of its proper divisors (16154009326345).

210002121242303 is a wasteful number, since it uses less digits than its factorization.

210002121242303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16154009326344.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 210002121242303 its reverse (303242121200012), we get a palindrome (513244242442315).

The spelling of 210002121242303 in words is "two hundred ten trillion, two billion, one hundred twenty-one million, two hundred forty-two thousand, three hundred three".