243133243143 has 32 divisors (see below), whose sum is σ = 392386291200. Its totient is φ = 130726041600.

The previous prime is 243133243091. The next prime is 243133243159. The reversal of 243133243143 is 341342331342.

It is a happy number.

It is not a de Polignac number, because 243133243143 - 2¹² = 243133239047 is a prime.

It is a super-2 number, since 2×243133243143² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243133243183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1286383 + ... + 1463231.

It is an arithmetic number, because the mean of its divisors is an integer number (12262071600).

Almost surely, 2^243133243143 is an apocalyptic number.

243133243143 is a deficient number, since it is larger than the sum of its proper divisors (149253048057).

243133243143 is a wasteful number, since it uses less digits than its factorization.

243133243143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180727.

The product of its digits is 62208, while the sum is 33.

Adding to 243133243143 its reverse (341342331342), we get a palindrome (584475574485).

The spelling of 243133243143 in words is "two hundred forty-three billion, one hundred thirty-three million, two hundred forty-three thousand, one hundred forty-three".