230723321 has 2 divisors, whose sum is σ = 230723322. Its totient is φ = 230723320.

The previous prime is 230723293. The next prime is 230723347. The reversal of 230723321 is 123327032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180526096 + 50197225 = 13436^2 + 7085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230723321 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (230723021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115361660 + 115361661.

It is an arithmetic number, because the mean of its divisors is an integer number (115361661).

Almost surely, 2^230723321 is an apocalyptic number.

It is an amenable number.

230723321 is a deficient number, since it is larger than the sum of its proper divisors (1).

230723321 is an equidigital number, since it uses as much as digits as its factorization.

230723321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 230723321 is about 15189.5793555977. The cubic root of 230723321 is about 613.3341756907.

The spelling of 230723321 in words is "two hundred thirty million, seven hundred twenty-three thousand, three hundred twenty-one".