42120223444133 has 4 divisors (see below), whose sum is σ = 43258607861580. Its totient is φ = 40981839026688.

The previous prime is 42120223444111. The next prime is 42120223444153. The reversal of 42120223444133 is 33144432202124.

It is a happy number.

42120223444133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 21191227112449 + 20928996331684 = 4603393^2 + 4574822^2 .

It is a cyclic number.

It is not a de Polignac number, because 42120223444133 - 2¹² = 42120223440037 is a prime.

It is a super-2 number, since 2×42120223444133² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42120223444093 and 42120223444102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42120223444153) 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 in 3 ways as a sum of consecutive naturals, for example, 569192208668 + ... + 569192208741.

It is an arithmetic number, because the mean of its divisors is an integer number (10814651965395).

Almost surely, 2^{42120223444133} is an apocalyptic number.

It is an amenable number.

42120223444133 is a deficient number, since it is larger than the sum of its proper divisors (1138384417447).

42120223444133 is a wasteful number, since it uses less digits than its factorization.

42120223444133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138384417446.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 42120223444133 its reverse (33144432202124), we get a palindrome (75264655646257).

The spelling of 42120223444133 in words is "forty-two trillion, one hundred twenty billion, two hundred twenty-three million, four hundred forty-four thousand, one hundred thirty-three".