230653021 has 2 divisors, whose sum is σ = 230653022. Its totient is φ = 230653020.

The previous prime is 230653019. The next prime is 230653057. The reversal of 230653021 is 120356032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219188025 + 11464996 = 14805^2 + 3386^2 .

It is a cyclic number.

It is not a de Polignac number, because 230653021 - 2¹ = 230653019 is a prime.

Together with 230653019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 230652983 and 230653001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230653081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115326510 + 115326511.

It is an arithmetic number, because the mean of its divisors is an integer number (115326511).

Almost surely, 2^230653021 is an apocalyptic number.

It is an amenable number.

230653021 is a deficient number, since it is larger than the sum of its proper divisors (1).

230653021 is an equidigital number, since it uses as much as digits as its factorization.

230653021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 230653021 is about 15187.2650928335. The cubic root of 230653021 is about 613.2718762920.

The spelling of 230653021 in words is "two hundred thirty million, six hundred fifty-three thousand, twenty-one".