230443391 has 2 divisors, whose sum is σ = 230443392. Its totient is φ = 230443390.

The previous prime is 230443379. The next prime is 230443403. The reversal of 230443391 is 193344032.

It is a balanced prime because it is at equal distance from previous prime (230443379) and next prime (230443403).

It is a cyclic number.

It is not a de Polignac number, because 230443391 - 2¹⁰ = 230442367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230443691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115221695 + 115221696.

It is an arithmetic number, because the mean of its divisors is an integer number (115221696).

Almost surely, 2^230443391 is an apocalyptic number.

230443391 is a deficient number, since it is larger than the sum of its proper divisors (1).

230443391 is an equidigital number, since it uses as much as digits as its factorization.

230443391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 230443391 is about 15180.3620180811. The cubic root of 230443391 is about 613.0860283748.

The spelling of 230443391 in words is "two hundred thirty million, four hundred forty-three thousand, three hundred ninety-one".