42001252050073 has 2 divisors, whose sum is σ = 42001252050074. Its totient is φ = 42001252050072.

The previous prime is 42001252050041. The next prime is 42001252050143. The reversal of 42001252050073 is 37005025210024.

42001252050073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35932927270464 + 6068324779609 = 5994408^2 + 2463397^2 .

It is a cyclic number.

It is not a de Polignac number, because 42001252050073 - 2⁵ = 42001252050041 is a prime.

It is a super-2 number, since 2×42001252050073² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42001252053073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21000626025036 + 21000626025037.

It is an arithmetic number, because the mean of its divisors is an integer number (21000626025037).

Almost surely, 2^{42001252050073} is an apocalyptic number.

It is an amenable number.

42001252050073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42001252050073 is an equidigital number, since it uses as much as digits as its factorization.

42001252050073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 42001252050073 its reverse (37005025210024), we get a palindrome (79006277260097).

The spelling of 42001252050073 in words is "forty-two trillion, one billion, two hundred fifty-two million, fifty thousand, seventy-three".