423423132541543 has 32 divisors (see below), whose sum is σ = 467939616520320. Its totient is φ = 381452902871040.

The previous prime is 423423132541537. The next prime is 423423132541561. The reversal of 423423132541543 is 345145231324324.

It is a cyclic number.

It is not a de Polignac number, because 423423132541543 - 2⁵ = 423423132541511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423423132541493 and 423423132541502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423423132541583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3145791321 + ... + 3145925917.

It is an arithmetic number, because the mean of its divisors is an integer number (14623113016260).

Almost surely, 2^{423423132541543} is an apocalyptic number.

423423132541543 is a deficient number, since it is larger than the sum of its proper divisors (44516483978777).

423423132541543 is a wasteful number, since it uses less digits than its factorization.

423423132541543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219867.

The product of its digits is 4147200, while the sum is 46.

Adding to 423423132541543 its reverse (345145231324324), we get a palindrome (768568363865867).

The spelling of 423423132541543 in words is "four hundred twenty-three trillion, four hundred twenty-three billion, one hundred thirty-two million, five hundred forty-one thousand, five hundred forty-three".