4042424320321 has 4 divisors (see below), whose sum is σ = 4060076828500. Its totient is φ = 4024771812144.

The previous prime is 4042424320303. The next prime is 4042424320331. The reversal of 4042424320321 is 1230234242404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3551864160321 + 490560160000 = 1884639^2 + 700400^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042424320321 - 2³⁵ = 4008064581953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042424320331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8826253746 + ... + 8826254203.

It is an arithmetic number, because the mean of its divisors is an integer number (1015019207125).

Almost surely, 2^{4042424320321} is an apocalyptic number.

It is an amenable number.

4042424320321 is a deficient number, since it is larger than the sum of its proper divisors (17652508179).

4042424320321 is a wasteful number, since it uses less digits than its factorization.

4042424320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17652508178.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 4042424320321 its reverse (1230234242404), we get a palindrome (5272658562725).

The spelling of 4042424320321 in words is "four trillion, forty-two billion, four hundred twenty-four million, three hundred twenty thousand, three hundred twenty-one".