42416123 has 2 divisors, whose sum is σ = 42416124. Its totient is φ = 42416122.

The previous prime is 42416119. The next prime is 42416131. The reversal of 42416123 is 32161424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42416123 - 2² = 42416119 is a prime.

It is a super-2 number, since 2×42416123² = 3598254980702258, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42415123) 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 as a sum of consecutive naturals, namely, 21208061 + 21208062.

It is an arithmetic number, because the mean of its divisors is an integer number (21208062).

Almost surely, 2^42416123 is an apocalyptic number.

42416123 is a deficient number, since it is larger than the sum of its proper divisors (1).

42416123 is an equidigital number, since it uses as much as digits as its factorization.

42416123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 42416123 is about 6512.7661557897. The cubic root of 42416123 is about 348.7468738131.

Adding to 42416123 its reverse (32161424), we get a palindrome (74577547).

The spelling of 42416123 in words is "forty-two million, four hundred sixteen thousand, one hundred twenty-three".