210130333121 has 4 divisors (see below), whose sum is σ = 210292347012. Its totient is φ = 209968319232.

The previous prime is 210130333109. The next prime is 210130333169. The reversal of 210130333121 is 121333031012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 209860191025 + 270142096 = 458105^2 + 16436^2 .

It is a cyclic number.

It is not a de Polignac number, because 210130333121 - 2⁶ = 210130333057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210130333093 and 210130333102.

It is not an unprimeable number, because it can be changed into a prime (210130333421) 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, 81005000 + ... + 81007593.

It is an arithmetic number, because the mean of its divisors is an integer number (52573086753).

Almost surely, 2^210130333121 is an apocalyptic number.

It is an amenable number.

210130333121 is a deficient number, since it is larger than the sum of its proper divisors (162013891).

210130333121 is a wasteful number, since it uses less digits than its factorization.

210130333121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162013890.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 210130333121 its reverse (121333031012), we get a palindrome (331463364133).

The spelling of 210130333121 in words is "two hundred ten billion, one hundred thirty million, three hundred thirty-three thousand, one hundred twenty-one".