238230855143 has 2 divisors, whose sum is σ = 238230855144. Its totient is φ = 238230855142.

The previous prime is 238230855127. The next prime is 238230855167. The reversal of 238230855143 is 341558032832.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238230855143 - 2⁴ = 238230855127 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 238230855094 and 238230855103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238230855103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119115427571 + 119115427572.

It is an arithmetic number, because the mean of its divisors is an integer number (119115427572).

Almost surely, 2^238230855143 is an apocalyptic number.

238230855143 is a deficient number, since it is larger than the sum of its proper divisors (1).

238230855143 is an equidigital number, since it uses as much as digits as its factorization.

238230855143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 44.

Adding to 238230855143 its reverse (341558032832), we get a palindrome (579788887975).

The spelling of 238230855143 in words is "two hundred thirty-eight billion, two hundred thirty million, eight hundred fifty-five thousand, one hundred forty-three".