42003174321 has 16 divisors (see below), whose sum is σ = 62234467200. Its totient is φ = 27998722224.

The previous prime is 42003174263. The next prime is 42003174349. The reversal of 42003174321 is 12347130024.

It is a happy number.

42003174321 is a `hidden beast` number, since 4 + 20 + 0 + 317 + 4 + 321 = 666.

It is not a de Polignac number, because 42003174321 - 2¹⁹ = 42002650033 is a prime.

It is a super-2 number, since 2×42003174321² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42003174361) 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, 143515 + ... + 323423.

It is an arithmetic number, because the mean of its divisors is an integer number (3889654200).

Almost surely, 2^42003174321 is an apocalyptic number.

It is an amenable number.

42003174321 is a deficient number, since it is larger than the sum of its proper divisors (20231292879).

42003174321 is a wasteful number, since it uses less digits than its factorization.

42003174321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188565 (or 188559 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The spelling of 42003174321 in words is "forty-two billion, three million, one hundred seventy-four thousand, three hundred twenty-one".