42123443233442 has 16 divisors (see below), whose sum is σ = 63902429864064. Its totient is φ = 20823819822000.

The previous prime is 42123443233433. The next prime is 42123443233447. The reversal of 42123443233442 is 24433234432124.

It is a happy number.

42123443233442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42123443233442² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42123443233442.

It is not an unprimeable number, because it can be changed into a prime (42123443233447) 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 7 ways as a sum of consecutive naturals, for example, 296564609 + ... + 296706612.

It is an arithmetic number, because the mean of its divisors is an integer number (3993901866504).

Almost surely, 2^{42123443233442} is an apocalyptic number.

42123443233442 is a deficient number, since it is larger than the sum of its proper divisors (21778986630622).

42123443233442 is a wasteful number, since it uses less digits than its factorization.

42123443233442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593271625.

The product of its digits is 1327104, while the sum is 41.

Adding to 42123443233442 its reverse (24433234432124), we get a palindrome (66556677665566).

The spelling of 42123443233442 in words is "forty-two trillion, one hundred twenty-three billion, four hundred forty-three million, two hundred thirty-three thousand, four hundred forty-two".