42003123141 has 16 divisors (see below), whose sum is σ = 64022134400. Its totient is φ = 23995268928.

The previous prime is 42003123139. The next prime is 42003123161. The reversal of 42003123141 is 14132130024.

It is not a de Polignac number, because 42003123141 - 2¹ = 42003123139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003123161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191746 + ... + 347523.

It is an arithmetic number, because the mean of its divisors is an integer number (4001383400).

Almost surely, 2^42003123141 is an apocalyptic number.

It is an amenable number.

42003123141 is a deficient number, since it is larger than the sum of its proper divisors (22019011259).

42003123141 is a wasteful number, since it uses less digits than its factorization.

42003123141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542988.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 42003123141 its reverse (14132130024), we get a palindrome (56135253165).

The spelling of 42003123141 in words is "forty-two billion, three million, one hundred twenty-three thousand, one hundred forty-one".