3042021355321 has 16 divisors (see below), whose sum is σ = 3285547323520. Its totient is φ = 2799866684160.

The previous prime is 3042021355301. The next prime is 3042021355379. The reversal of 3042021355321 is 1235531202403.

It is not a de Polignac number, because 3042021355321 - 2¹⁵ = 3042021322553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3042021355301) 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, 6638476 + ... + 7081906.

It is an arithmetic number, because the mean of its divisors is an integer number (205346707720).

Almost surely, 2^{3042021355321} is an apocalyptic number.

It is an amenable number.

3042021355321 is a deficient number, since it is larger than the sum of its proper divisors (243525968199).

3042021355321 is a wasteful number, since it uses less digits than its factorization.

3042021355321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444976.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 3042021355321 its reverse (1235531202403), we get a palindrome (4277552557724).

The spelling of 3042021355321 in words is "three trillion, forty-two billion, twenty-one million, three hundred fifty-five thousand, three hundred twenty-one".