243101404143 has 36 divisors (see below), whose sum is σ = 394318393560. Its totient is φ = 149600838816.

The previous prime is 243101404127. The next prime is 243101404151. The reversal of 243101404143 is 341404101342.

243101404143 is a `hidden beast` number, since 243 + 1 + 0 + 1 + 4 + 0 + 414 + 3 = 666.

It is not a de Polignac number, because 243101404143 - 2⁴ = 243101404127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243101404243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2918748 + ... + 3000881.

It is an arithmetic number, because the mean of its divisors is an integer number (10953288710).

Almost surely, 2^243101404143 is an apocalyptic number.

243101404143 is a deficient number, since it is larger than the sum of its proper divisors (151216989417).

243101404143 is an equidigital number, since it uses as much as digits as its factorization.

243101404143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919670 (or 5919645 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 243101404143 its reverse (341404101342), we get a palindrome (584505505485).

The spelling of 243101404143 in words is "two hundred forty-three billion, one hundred one million, four hundred four thousand, one hundred forty-three".