42443130123 has 6 divisors (see below), whose sum is σ = 61306743524. Its totient is φ = 28295420076.

The previous prime is 42443130089. The next prime is 42443130137. The reversal of 42443130123 is 32103134424.

42443130123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42443130123 - 2¹² = 42443126027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42443130143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2357951665 + ... + 2357951682.

Almost surely, 2^42443130123 is an apocalyptic number.

42443130123 is a deficient number, since it is larger than the sum of its proper divisors (18863613401).

42443130123 is a wasteful number, since it uses less digits than its factorization.

42443130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715903353 (or 4715903350 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 42443130123 its reverse (32103134424), we get a palindrome (74546264547).

The spelling of 42443130123 in words is "forty-two billion, four hundred forty-three million, one hundred thirty thousand, one hundred twenty-three".