42243314431 has 4 divisors (see below), whose sum is σ = 42243781672. Its totient is φ = 42242847192.

The previous prime is 42243314413. The next prime is 42243314459. The reversal of 42243314431 is 13441334224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42243314431 - 2¹¹ = 42243312383 is a prime.

It is a super-2 number, since 2×42243314431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42243314393 and 42243314402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243314401) 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, 49785 + ... + 294898.

It is an arithmetic number, because the mean of its divisors is an integer number (10560945418).

Almost surely, 2^42243314431 is an apocalyptic number.

42243314431 is a deficient number, since it is larger than the sum of its proper divisors (467241).

42243314431 is a wasteful number, since it uses less digits than its factorization.

42243314431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467240.

The product of its digits is 27648, while the sum is 31.

Adding to 42243314431 its reverse (13441334224), we get a palindrome (55684648655).

The spelling of 42243314431 in words is "forty-two billion, two hundred forty-three million, three hundred fourteen thousand, four hundred thirty-one".