230434021 has 2 divisors, whose sum is σ = 230434022. Its totient is φ = 230434020.

The previous prime is 230433977. The next prime is 230434037. The reversal of 230434021 is 120434032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136072225 + 94361796 = 11665^2 + 9714^2 .

It is a cyclic number.

It is not a de Polignac number, because 230434021 - 2¹³ = 230425829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230434021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230434621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115217010 + 115217011.

It is an arithmetic number, because the mean of its divisors is an integer number (115217011).

Almost surely, 2^230434021 is an apocalyptic number.

It is an amenable number.

230434021 is a deficient number, since it is larger than the sum of its proper divisors (1).

230434021 is an equidigital number, since it uses as much as digits as its factorization.

230434021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 230434021 is about 15180.0533925280. The cubic root of 230434021 is about 613.0777187506.

Adding to 230434021 its reverse (120434032), we get a palindrome (350868053).

The spelling of 230434021 in words is "two hundred thirty million, four hundred thirty-four thousand, twenty-one".