243404020142 has 8 divisors (see below), whose sum is σ = 367216470216. Its totient is φ = 120998530072.

The previous prime is 243404020121. The next prime is 243404020177. The reversal of 243404020142 is 241020404342.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351739568 + ... + 351740259.

It is an arithmetic number, because the mean of its divisors is an integer number (45902058777).

Almost surely, 2^243404020142 is an apocalyptic number.

243404020142 is a deficient number, since it is larger than the sum of its proper divisors (123812450074).

243404020142 is a wasteful number, since it uses less digits than its factorization.

243404020142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703480002.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 243404020142 its reverse (241020404342), we get a palindrome (484424424484).

The spelling of 243404020142 in words is "two hundred forty-three billion, four hundred four million, twenty thousand, one hundred forty-two".