42002032423 has 32 divisors (see below), whose sum is σ = 46118983680. Its totient is φ = 38021529600.

The previous prime is 42002032363. The next prime is 42002032441. The reversal of 42002032423 is 32423020024.

It is a cyclic number.

It is not a de Polignac number, because 42002032423 - 2²⁹ = 41465161511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42002032394 and 42002032403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002032493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104743023 + ... + 104743423.

It is an arithmetic number, because the mean of its divisors is an integer number (1441218240).

Almost surely, 2^42002032423 is an apocalyptic number.

42002032423 is a deficient number, since it is larger than the sum of its proper divisors (4116951257).

42002032423 is a wasteful number, since it uses less digits than its factorization.

42002032423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 42002032423 its reverse (32423020024), we get a palindrome (74425052447).

The spelling of 42002032423 in words is "forty-two billion, two million, thirty-two thousand, four hundred twenty-three".