423103543 has 2 divisors, whose sum is σ = 423103544. Its totient is φ = 423103542.

The previous prime is 423103517. The next prime is 423103567. The reversal of 423103543 is 345301324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423103543 - 2⁵ = 423103511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423103643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211551771 + 211551772.

It is an arithmetic number, because the mean of its divisors is an integer number (211551772).

Almost surely, 2^423103543 is an apocalyptic number.

423103543 is a deficient number, since it is larger than the sum of its proper divisors (1).

423103543 is an equidigital number, since it uses as much as digits as its factorization.

423103543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 423103543 is about 20569.4808636485. The cubic root of 423103543 is about 750.7273199278.

Adding to 423103543 its reverse (345301324), we get a palindrome (768404867).

The spelling of 423103543 in words is "four hundred twenty-three million, one hundred three thousand, five hundred forty-three".