42560123 has 2 divisors, whose sum is σ = 42560124. Its totient is φ = 42560122.

The previous prime is 42560107. The next prime is 42560137. The reversal of 42560123 is 32106524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42560123 - 2⁴ = 42560107 is a prime.

It is a super-2 number, since 2×42560123² = 3622728139550258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42560183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21280061 + 21280062.

It is an arithmetic number, because the mean of its divisors is an integer number (21280062).

Almost surely, 2^42560123 is an apocalyptic number.

42560123 is a deficient number, since it is larger than the sum of its proper divisors (1).

42560123 is an equidigital number, since it uses as much as digits as its factorization.

42560123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42560123 is about 6523.8119991306. The cubic root of 42560123 is about 349.1410857504.

Adding to 42560123 its reverse (32106524), we get a palindrome (74666647).

The spelling of 42560123 in words is "forty-two million, five hundred sixty thousand, one hundred twenty-three".