42003120423 has 8 divisors (see below), whose sum is σ = 61095447936. Its totient is φ = 25456436600.

The previous prime is 42003120409. The next prime is 42003120433. The reversal of 42003120423 is 32402130024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42003120423 - 2⁴ = 42003120407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42003120423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003120433) 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 7 ways as a sum of consecutive naturals, for example, 636410883 + ... + 636410948.

It is an arithmetic number, because the mean of its divisors is an integer number (7636930992).

Almost surely, 2^42003120423 is an apocalyptic number.

42003120423 is a deficient number, since it is larger than the sum of its proper divisors (19092327513).

42003120423 is a wasteful number, since it uses less digits than its factorization.

42003120423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272821845.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 42003120423 its reverse (32402130024), we get a palindrome (74405250447).

The spelling of 42003120423 in words is "forty-two billion, three million, one hundred twenty thousand, four hundred twenty-three".