42143441023 has 4 divisors (see below), whose sum is σ = 42300108360. Its totient is φ = 41986773688.

The previous prime is 42143440991. The next prime is 42143441027. The reversal of 42143441023 is 32014434124.

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

It is a cyclic number.

It is not a de Polignac number, because 42143441023 - 2⁵ = 42143440991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42143440982 and 42143441000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143441027) 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, 78333265 + ... + 78333802.

It is an arithmetic number, because the mean of its divisors is an integer number (10575027090).

Almost surely, 2^42143441023 is an apocalyptic number.

42143441023 is a deficient number, since it is larger than the sum of its proper divisors (156667337).

42143441023 is a wasteful number, since it uses less digits than its factorization.

42143441023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156667336.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 42143441023 its reverse (32014434124), we get a palindrome (74157875147).

The spelling of 42143441023 in words is "forty-two billion, one hundred forty-three million, four hundred forty-one thousand, twenty-three".