230232143 has 2 divisors, whose sum is σ = 230232144. Its totient is φ = 230232142.

The previous prime is 230232137. The next prime is 230232161. The reversal of 230232143 is 341232032.

230232143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230232143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230232043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115116071 + 115116072.

It is an arithmetic number, because the mean of its divisors is an integer number (115116072).

Almost surely, 2^230232143 is an apocalyptic number.

230232143 is a deficient number, since it is larger than the sum of its proper divisors (1).

230232143 is an equidigital number, since it uses as much as digits as its factorization.

230232143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 230232143 is about 15173.4024859291. The cubic root of 230232143 is about 612.8986319649.

Adding to 230232143 its reverse (341232032), we get a palindrome (571464175).

The spelling of 230232143 in words is "two hundred thirty million, two hundred thirty-two thousand, one hundred forty-three".