42143304331 has 4 divisors (see below), whose sum is σ = 44361373000. Its totient is φ = 39925235664.

The previous prime is 42143304289. The next prime is 42143304337. The reversal of 42143304331 is 13340334124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42143304331 is a prime.

It is a super-2 number, since 2×42143304331² (a number of 22 digits) contains 22 as substring.

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 42143304331.

It is not an unprimeable number, because it can be changed into a prime (42143304337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109034306 + ... + 1109034343.

It is an arithmetic number, because the mean of its divisors is an integer number (11090343250).

Almost surely, 2^42143304331 is an apocalyptic number.

42143304331 is a deficient number, since it is larger than the sum of its proper divisors (2218068669).

42143304331 is a wasteful number, since it uses less digits than its factorization.

42143304331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218068668.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 42143304331 its reverse (13340334124), we get a palindrome (55483638455).

The spelling of 42143304331 in words is "forty-two billion, one hundred forty-three million, three hundred four thousand, three hundred thirty-one".