42143225143 has 4 divisors (see below), whose sum is σ = 42280499800. Its totient is φ = 42005950488.

The previous prime is 42143225107. The next prime is 42143225161. The reversal of 42143225143 is 34152234124.

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-42143225143 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 (42143220143) 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, 68636868 + ... + 68637481.

It is an arithmetic number, because the mean of its divisors is an integer number (10570124950).

Almost surely, 2^42143225143 is an apocalyptic number.

42143225143 is a deficient number, since it is larger than the sum of its proper divisors (137274657).

42143225143 is a wasteful number, since it uses less digits than its factorization.

42143225143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137274656.

The product of its digits is 23040, while the sum is 31.

Adding to 42143225143 its reverse (34152234124), we get a palindrome (76295459267).

The spelling of 42143225143 in words is "forty-two billion, one hundred forty-three million, two hundred twenty-five thousand, one hundred forty-three".