42243114421 has 4 divisors (see below), whose sum is σ = 42398993344. Its totient is φ = 42087235500.

The previous prime is 42243114413. The next prime is 42243114439. The reversal of 42243114421 is 12441134224.

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 a cyclic number.

It is not a de Polignac number, because 42243114421 - 2³ = 42243114413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42243114421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243114401) 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, 77939055 + ... + 77939596.

It is an arithmetic number, because the mean of its divisors is an integer number (10599748336).

Almost surely, 2^42243114421 is an apocalyptic number.

It is an amenable number.

42243114421 is a deficient number, since it is larger than the sum of its proper divisors (155878923).

42243114421 is a wasteful number, since it uses less digits than its factorization.

42243114421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155878922.

The product of its digits is 6144, while the sum is 28.

Adding to 42243114421 its reverse (12441134224), we get a palindrome (54684248645).

The spelling of 42243114421 in words is "forty-two billion, two hundred forty-three million, one hundred fourteen thousand, four hundred twenty-one".