4021423132323 has 4 divisors (see below), whose sum is σ = 5361897509768. Its totient is φ = 2680948754880.

The previous prime is 4021423132297. The next prime is 4021423132361. The reversal of 4021423132323 is 3232313241204.

It is a happy number.

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

It is not a de Polignac number, because 4021423132323 - 2²⁰ = 4021422083747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021423132723) 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, 670237188718 + ... + 670237188723.

It is an arithmetic number, because the mean of its divisors is an integer number (1340474377442).

Almost surely, 2^{4021423132323} is an apocalyptic number.

4021423132323 is a deficient number, since it is larger than the sum of its proper divisors (1340474377445).

4021423132323 is a wasteful number, since it uses less digits than its factorization.

4021423132323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340474377444.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 4021423132323 its reverse (3232313241204), we get a palindrome (7253736373527).

The spelling of 4021423132323 in words is "four trillion, twenty-one billion, four hundred twenty-three million, one hundred thirty-two thousand, three hundred twenty-three".