4021343122423 has 4 divisors (see below), whose sum is σ = 4386919769928. Its totient is φ = 3655766474920.

The previous prime is 4021343122403. The next prime is 4021343122439. The reversal of 4021343122423 is 3242213431204.

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

It is a cyclic number.

It is not a de Polignac number, because 4021343122423 - 2²⁵ = 4021309567991 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 (4021343122403) 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, 182788323736 + ... + 182788323757.

It is an arithmetic number, because the mean of its divisors is an integer number (1096729942482).

Almost surely, 2^{4021343122423} is an apocalyptic number.

4021343122423 is a deficient number, since it is larger than the sum of its proper divisors (365576647505).

4021343122423 is a wasteful number, since it uses less digits than its factorization.

4021343122423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365576647504.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 4021343122423 its reverse (3242213431204), we get a palindrome (7263556553627).

The spelling of 4021343122423 in words is "four trillion, twenty-one billion, three hundred forty-three million, one hundred twenty-two thousand, four hundred twenty-three".