42004030321 has 16 divisors (see below), whose sum is σ = 49313415168. Its totient is φ = 35350099200.

The previous prime is 42004030319. The next prime is 42004030339. The reversal of 42004030321 is 12303040024.

42004030321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42004030321 - 2¹ = 42004030319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42004030921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1829745 + ... + 1852558.

It is an arithmetic number, because the mean of its divisors is an integer number (3082088448).

Almost surely, 2^42004030321 is an apocalyptic number.

It is an amenable number.

42004030321 is a deficient number, since it is larger than the sum of its proper divisors (7309384847).

42004030321 is a wasteful number, since it uses less digits than its factorization.

42004030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682392.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 42004030321 its reverse (12303040024), we get a palindrome (54307070345).

The spelling of 42004030321 in words is "forty-two billion, four million, thirty thousand, three hundred twenty-one".