42124040011 has 2 divisors, whose sum is σ = 42124040012. Its totient is φ = 42124040010.

The previous prime is 42124040009. The next prime is 42124040039. The reversal of 42124040011 is 11004042124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42124040011 - 2¹ = 42124040009 is a prime.

Together with 42124040009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42124040071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21062020005 + 21062020006.

It is an arithmetic number, because the mean of its divisors is an integer number (21062020006).

Almost surely, 2^42124040011 is an apocalyptic number.

42124040011 is a deficient number, since it is larger than the sum of its proper divisors (1).

42124040011 is an equidigital number, since it uses as much as digits as its factorization.

42124040011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 42124040011 its reverse (11004042124), we get a palindrome (53128082135).

The spelling of 42124040011 in words is "forty-two billion, one hundred twenty-four million, forty thousand, eleven".