230123281 has 2 divisors, whose sum is σ = 230123282. Its totient is φ = 230123280.

The previous prime is 230123263. The next prime is 230123329. The reversal of 230123281 is 182321032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219780625 + 10342656 = 14825^2 + 3216^2 .

It is a cyclic number.

It is not a de Polignac number, because 230123281 - 2⁹ = 230122769 is a prime.

It is a super-2 number, since 2×230123281² = 105913448916409922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230123251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115061640 + 115061641.

It is an arithmetic number, because the mean of its divisors is an integer number (115061641).

Almost surely, 2^230123281 is an apocalyptic number.

It is an amenable number.

230123281 is a deficient number, since it is larger than the sum of its proper divisors (1).

230123281 is an equidigital number, since it uses as much as digits as its factorization.

230123281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 230123281 is about 15169.8147978148. The cubic root of 230123281 is about 612.8020165968.

The spelling of 230123281 in words is "two hundred thirty million, one hundred twenty-three thousand, two hundred eighty-one".