243424230142 has 4 divisors (see below), whose sum is σ = 365136345216. Its totient is φ = 121712115070.

The previous prime is 243424230109. The next prime is 243424230143. The reversal of 243424230142 is 241032424342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241032424342 = 2 ⋅120516212171.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243424230143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60856057534 + ... + 60856057537.

It is an arithmetic number, because the mean of its divisors is an integer number (91284086304).

Almost surely, 2^243424230142 is an apocalyptic number.

243424230142 is a deficient number, since it is larger than the sum of its proper divisors (121712115074).

243424230142 is a wasteful number, since it uses less digits than its factorization.

243424230142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121712115073.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 243424230142 its reverse (241032424342), we get a palindrome (484456654484).

The spelling of 243424230142 in words is "two hundred forty-three billion, four hundred twenty-four million, two hundred thirty thousand, one hundred forty-two".