42423431343 has 16 divisors (see below), whose sum is σ = 56641791360. Its totient is φ = 28243711584.

The previous prime is 42423431327. The next prime is 42423431389. The reversal of 42423431343 is 34313432424.

It is a happy number.

It is not a de Polignac number, because 42423431343 - 2⁴ = 42423431327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42423431143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9775068 + ... + 9779406.

It is an arithmetic number, because the mean of its divisors is an integer number (3540111960).

Almost surely, 2^42423431343 is an apocalyptic number.

42423431343 is a deficient number, since it is larger than the sum of its proper divisors (14218360017).

42423431343 is a wasteful number, since it uses less digits than its factorization.

42423431343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8038.

The product of its digits is 82944, while the sum is 33.

Adding to 42423431343 its reverse (34313432424), we get a palindrome (76736863767).

The spelling of 42423431343 in words is "forty-two billion, four hundred twenty-three million, four hundred thirty-one thousand, three hundred forty-three".