42003343321 has 8 divisors (see below), whose sum is σ = 43459475400. Its totient is φ = 40547727360.

The previous prime is 42003343313. The next prime is 42003343363. The reversal of 42003343321 is 12334330024.

It can be written as a sum of positive squares in 4 ways, for example, as 1760977296 + 40242366025 = 41964^2 + 200605^2 .

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 42003343321 - 2³ = 42003343313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42003349321) 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 7 ways as a sum of consecutive naturals, for example, 40345 + ... + 292633.

It is an arithmetic number, because the mean of its divisors is an integer number (5432434425).

Almost surely, 2^42003343321 is an apocalyptic number.

It is an amenable number.

42003343321 is a deficient number, since it is larger than the sum of its proper divisors (1456132079).

42003343321 is a wasteful number, since it uses less digits than its factorization.

42003343321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258059.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 42003343321 its reverse (12334330024), we get a palindrome (54337673345).

The spelling of 42003343321 in words is "forty-two billion, three million, three hundred forty-three thousand, three hundred twenty-one".