42243021044013 has 4 divisors (see below), whose sum is σ = 56324028058688. Its totient is φ = 28162014029340.

The previous prime is 42243021043997. The next prime is 42243021044027. The reversal of 42243021044013 is 31044012034224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42243021044013 - 2⁴ = 42243021043997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243021044113) 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, 7040503507333 + ... + 7040503507338.

It is an arithmetic number, because the mean of its divisors is an integer number (14081007014672).

Almost surely, 2^{42243021044013} is an apocalyptic number.

It is an amenable number.

42243021044013 is a deficient number, since it is larger than the sum of its proper divisors (14081007014675).

42243021044013 is a wasteful number, since it uses less digits than its factorization.

42243021044013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14081007014674.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 42243021044013 its reverse (31044012034224), we get a palindrome (73287033078237).

The spelling of 42243021044013 in words is "forty-two trillion, two hundred forty-three billion, twenty-one million, forty-four thousand, thirteen".