230130221 has 2 divisors, whose sum is σ = 230130222. Its totient is φ = 230130220.

The previous prime is 230130209. The next prime is 230130233. The reversal of 230130221 is 122031032.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (230130209) and next prime (230130233).

It can be written as a sum of positive squares in only one way, i.e., 229189321 + 940900 = 15139^2 + 970^2 .

It is a cyclic number.

It is not a de Polignac number, because 230130221 - 2²² = 225935917 is a prime.

It is a super-3 number, since 3×230130221³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230130196 and 230130205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230130521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115065110 + 115065111.

It is an arithmetic number, because the mean of its divisors is an integer number (115065111).

Almost surely, 2^230130221 is an apocalyptic number.

It is an amenable number.

230130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

230130221 is an equidigital number, since it uses as much as digits as its factorization.

230130221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 230130221 is about 15170.0435398189. The cubic root of 230130221 is about 612.8081767779.

Adding to 230130221 its reverse (122031032), we get a palindrome (352161253).

The spelling of 230130221 in words is "two hundred thirty million, one hundred thirty thousand, two hundred twenty-one".