243120571135143 has 32 divisors (see below), whose sum is σ = 354945960046272. Its totient is φ = 147107375078400.

The previous prime is 243120571135081. The next prime is 243120571135153. The reversal of 243120571135143 is 341531175021342.

It is not a de Polignac number, because 243120571135143 - 2⁸ = 243120571134887 is a prime.

It is a super-2 number, since 2×243120571135143² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243120571135095 and 243120571135104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243120571135153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11614518 + ... + 24922643.

It is an arithmetic number, because the mean of its divisors is an integer number (11092061251446).

Almost surely, 2^{243120571135143} is an apocalyptic number.

243120571135143 is a deficient number, since it is larger than the sum of its proper divisors (111825388911129).

243120571135143 is a wasteful number, since it uses less digits than its factorization.

243120571135143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36540035.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 243120571135143 in words is "two hundred forty-three trillion, one hundred twenty billion, five hundred seventy-one million, one hundred thirty-five thousand, one hundred forty-three".