42142030243 has 4 divisors (see below), whose sum is σ = 42421116688. Its totient is φ = 41862943800.

The previous prime is 42142030219. The next prime is 42142030297. The reversal of 42142030243 is 34203024124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42142030243 - 2²⁹ = 41605159331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42142030213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139542996 + ... + 139543297.

It is an arithmetic number, because the mean of its divisors is an integer number (10605279172).

Almost surely, 2^42142030243 is an apocalyptic number.

42142030243 is a deficient number, since it is larger than the sum of its proper divisors (279086445).

42142030243 is a wasteful number, since it uses less digits than its factorization.

42142030243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279086444.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 42142030243 its reverse (34203024124), we get a palindrome (76345054367).

The spelling of 42142030243 in words is "forty-two billion, one hundred forty-two million, thirty thousand, two hundred forty-three".