243140424243 has 8 divisors (see below), whose sum is σ = 324189742800. Its totient is φ = 162092360928.

The previous prime is 243140424203. The next prime is 243140424257. The reversal of 243140424243 is 342424041342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243140424243 - 2⁹ = 243140423731 is a prime.

It is a super-3 number, since 3×243140424243³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (243140424203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322453 + ... + 768281.

It is an arithmetic number, because the mean of its divisors is an integer number (40523717850).

Almost surely, 2^243140424243 is an apocalyptic number.

243140424243 is a deficient number, since it is larger than the sum of its proper divisors (81049318557).

243140424243 is a wasteful number, since it uses less digits than its factorization.

243140424243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627621.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 243140424243 its reverse (342424041342), we get a palindrome (585564465585).

The spelling of 243140424243 in words is "two hundred forty-three billion, one hundred forty million, four hundred twenty-four thousand, two hundred forty-three".