42503023 has 2 divisors, whose sum is σ = 42503024. Its totient is φ = 42503022.

The previous prime is 42502987. The next prime is 42503051. The reversal of 42503023 is 32030524.

42503023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42503023 - 2⁹ = 42502511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42503063) 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, 21251511 + 21251512.

It is an arithmetic number, because the mean of its divisors is an integer number (21251512).

Almost surely, 2^42503023 is an apocalyptic number.

42503023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42503023 is an equidigital number, since it uses as much as digits as its factorization.

42503023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 42503023 is about 6519.4342545960. The cubic root of 42503023 is about 348.9848763161.

Adding to 42503023 its reverse (32030524), we get a palindrome (74533547).

The spelling of 42503023 in words is "forty-two million, five hundred three thousand, twenty-three".