42124012001 has 4 divisors (see below), whose sum is σ = 42165351600. Its totient is φ = 42082672404.

The previous prime is 42124011991. The next prime is 42124012033. The reversal of 42124012001 is 10021042124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42124012001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42124012061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20668271 + ... + 20670308.

It is an arithmetic number, because the mean of its divisors is an integer number (10541337900).

Almost surely, 2^42124012001 is an apocalyptic number.

It is an amenable number.

42124012001 is a deficient number, since it is larger than the sum of its proper divisors (41339599).

42124012001 is a wasteful number, since it uses less digits than its factorization.

42124012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41339598.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 42124012001 its reverse (10021042124), we get a palindrome (52145054125).

The spelling of 42124012001 in words is "forty-two billion, one hundred twenty-four million, twelve thousand, one".