423012543 has 16 divisors (see below), whose sum is σ = 582865536. Its totient is φ = 272714400.

The previous prime is 423012497. The next prime is 423012587. The reversal of 423012543 is 345210324.

It is not a de Polignac number, because 423012543 - 2⁸ = 423012287 is a prime.

It is a super-2 number, since 2×423012543² = 357879223070653698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423012593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205 + ... + 29262.

It is an arithmetic number, because the mean of its divisors is an integer number (36429096).

Almost surely, 2^423012543 is an apocalyptic number.

423012543 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

423012543 is a deficient number, since it is larger than the sum of its proper divisors (159852993).

423012543 is a wasteful number, since it uses less digits than its factorization.

423012543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32614.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 423012543 is about 20567.2687297074. The cubic root of 423012543 is about 750.6734945813.

Adding to 423012543 its reverse (345210324), we get a palindrome (768222867).

It can be divided in two parts, 42301 and 2543, that added together give a palindrome (44844).

The spelling of 423012543 in words is "four hundred twenty-three million, twelve thousand, five hundred forty-three".