42031343 has 4 divisors (see below), whose sum is σ = 42289368. Its totient is φ = 41773320.

The previous prime is 42031337. The next prime is 42031349. The reversal of 42031343 is 34313024.

42031343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (42031337) and next prime (42031349).

It is a cyclic number.

It is not a de Polignac number, because 42031343 - 2¹⁰ = 42030319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128768 + ... + 129093.

It is an arithmetic number, because the mean of its divisors is an integer number (10572342).

Almost surely, 2^42031343 is an apocalyptic number.

42031343 is a deficient number, since it is larger than the sum of its proper divisors (258025).

42031343 is a wasteful number, since it uses less digits than its factorization.

42031343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258024.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 42031343 is about 6483.1584123790. The cubic root of 42031343 is about 347.6891105306.

Adding to 42031343 its reverse (34313024), we get a palindrome (76344367).

The spelling of 42031343 in words is "forty-two million, thirty-one thousand, three hundred forty-three".