230403143 has 2 divisors, whose sum is σ = 230403144. Its totient is φ = 230403142.

The previous prime is 230403133. The next prime is 230403163. The reversal of 230403143 is 341304032.

It is an a-pointer prime, because the next prime (230403163) can be obtained adding 230403143 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230403143 - 2⁴ = 230403127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230403133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115201571 + 115201572.

It is an arithmetic number, because the mean of its divisors is an integer number (115201572).

Almost surely, 2^230403143 is an apocalyptic number.

230403143 is a deficient number, since it is larger than the sum of its proper divisors (1).

230403143 is an equidigital number, since it uses as much as digits as its factorization.

230403143 is an odious number, because the sum of its binary digits is odd.

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

The square root of 230403143 is about 15179.0363001081. The cubic root of 230403143 is about 613.0503335301.

Adding to 230403143 its reverse (341304032), we get a palindrome (571707175).

The spelling of 230403143 in words is "two hundred thirty million, four hundred three thousand, one hundred forty-three".