42144550213105 has 4 divisors (see below), whose sum is σ = 50573460255732. Its totient is φ = 33715640170480.

The previous prime is 42144550213067. The next prime is 42144550213123. The reversal of 42144550213105 is 50131205544124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32328867479104 + 9815682734001 = 5685848^2 + 3132999^2 .

It is not a de Polignac number, because 42144550213105 - 2⁹ = 42144550212593 is a prime.

It is a super-2 number, since 2×42144550213105² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4214455021306 + ... + 4214455021315.

It is an arithmetic number, because the mean of its divisors is an integer number (12643365063933).

Almost surely, 2^{42144550213105} is an apocalyptic number.

It is an amenable number.

42144550213105 is a deficient number, since it is larger than the sum of its proper divisors (8428910042627).

42144550213105 is an equidigital number, since it uses as much as digits as its factorization.

42144550213105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8428910042626.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 42144550213105 its reverse (50131205544124), we get a palindrome (92275755757229).

The spelling of 42144550213105 in words is "forty-two trillion, one hundred forty-four billion, five hundred fifty million, two hundred thirteen thousand, one hundred five".