42216023 has 2 divisors, whose sum is σ = 42216024. Its totient is φ = 42216022.

The previous prime is 42216007. The next prime is 42216029. The reversal of 42216023 is 32061224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42216023 - 2⁴ = 42216007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42215986 and 42216004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42216029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21108011 + 21108012.

It is an arithmetic number, because the mean of its divisors is an integer number (21108012).

Almost surely, 2^42216023 is an apocalyptic number.

42216023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42216023 is an equidigital number, since it uses as much as digits as its factorization.

42216023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 42216023 is about 6497.3858589436. The cubic root of 42216023 is about 348.1975993878.

Adding to 42216023 its reverse (32061224), we get a palindrome (74277247).

The spelling of 42216023 in words is "forty-two million, two hundred sixteen thousand, twenty-three".