4042343241421 has 8 divisors (see below), whose sum is σ = 4108407480000. Its totient is φ = 3976532609280.

The previous prime is 4042343241413. The next prime is 4042343241427. The reversal of 4042343241421 is 1241423432404.

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 4042343241421 - 2³ = 4042343241413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042343241427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63369471 + ... + 63433228.

It is an arithmetic number, because the mean of its divisors is an integer number (513550935000).

Almost surely, 2^{4042343241421} is an apocalyptic number.

It is an amenable number.

4042343241421 is a deficient number, since it is larger than the sum of its proper divisors (66064238579).

4042343241421 is a wasteful number, since it uses less digits than its factorization.

4042343241421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126803219.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 4042343241421 its reverse (1241423432404), we get a palindrome (5283766673825).

The spelling of 4042343241421 in words is "four trillion, forty-two billion, three hundred forty-three million, two hundred forty-one thousand, four hundred twenty-one".