210230302121 has 12 divisors (see below), whose sum is σ = 245782540800. Its totient is φ = 179291878920.

The previous prime is 210230302111. The next prime is 210230302291. The reversal of 210230302121 is 121203032012.

It is not a de Polignac number, because 210230302121 - 2¹⁰ = 210230301097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210230302121.

It is not an unprimeable number, because it can be changed into a prime (210230302111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10770185 + ... + 10789686.

It is an arithmetic number, because the mean of its divisors is an integer number (20481878400).

Almost surely, 2^210230302121 is an apocalyptic number.

It is an amenable number.

210230302121 is a deficient number, since it is larger than the sum of its proper divisors (35552238679).

210230302121 is a wasteful number, since it uses less digits than its factorization.

210230302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21560084 (or 21560077 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 210230302121 its reverse (121203032012), we get a palindrome (331433334133).

The spelling of 210230302121 in words is "two hundred ten billion, two hundred thirty million, three hundred two thousand, one hundred twenty-one".