4021421234343 has 8 divisors (see below), whose sum is σ = 5376042460800. Its totient is φ = 2673873748728.

The previous prime is 4021421234333. The next prime is 4021421234377. The reversal of 4021421234343 is 3434321241204.

4021421234343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4021421234343 - 2⁸ = 4021421234087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021421234333) 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, 1768433883 + ... + 1768436156.

It is an arithmetic number, because the mean of its divisors is an integer number (672005307600).

Almost surely, 2^{4021421234343} is an apocalyptic number.

4021421234343 is a deficient number, since it is larger than the sum of its proper divisors (1354621226457).

4021421234343 is a wasteful number, since it uses less digits than its factorization.

4021421234343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536870421.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 4021421234343 its reverse (3434321241204), we get a palindrome (7455742475547).

The spelling of 4021421234343 in words is "four trillion, twenty-one billion, four hundred twenty-one million, two hundred thirty-four thousand, three hundred forty-three".