230012021 has 4 divisors (see below), whose sum is σ = 237943500. Its totient is φ = 222080544.

The previous prime is 230012011. The next prime is 230012053. The reversal of 230012021 is 120210032.

It is a happy number.

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 60621796 + 169390225 = 7786^2 + 13015^2 .

It is a cyclic number.

It is not a de Polignac number, because 230012021 - 2²⁶ = 162903157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230011993 and 230012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230012011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3965696 + ... + 3965753.

It is an arithmetic number, because the mean of its divisors is an integer number (59485875).

Almost surely, 2^230012021 is an apocalyptic number.

It is an amenable number.

230012021 is a deficient number, since it is larger than the sum of its proper divisors (7931479).

230012021 is an equidigital number, since it uses as much as digits as its factorization.

230012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7931478.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 230012021 is about 15166.1472035583. The cubic root of 230012021 is about 612.7032415070.

Adding to 230012021 its reverse (120210032), we get a palindrome (350222053).

The spelling of 230012021 in words is "two hundred thirty million, twelve thousand, twenty-one".