42112421103 has 16 divisors (see below), whose sum is σ = 56691000576. Its totient is φ = 27804546240.

The previous prime is 42112421093. The next prime is 42112421111. The reversal of 42112421103 is 30112421124.

It is not a de Polignac number, because 42112421103 - 2¹³ = 42112412911 is a prime.

It is a super-2 number, since 2×42112421103² (a number of 22 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 42112421103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112422103) 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 15 ways as a sum of consecutive naturals, for example, 1223043 + ... + 1257003.

It is an arithmetic number, because the mean of its divisors is an integer number (3543187536).

Almost surely, 2^42112421103 is an apocalyptic number.

42112421103 is a deficient number, since it is larger than the sum of its proper divisors (14578579473).

42112421103 is a wasteful number, since it uses less digits than its factorization.

42112421103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37934.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 42112421103 its sum of digits (21), we get a palindrome (42112421124).

Adding to 42112421103 its reverse (30112421124), we get a palindrome (72224842227).

The spelling of 42112421103 in words is "forty-two billion, one hundred twelve million, four hundred twenty-one thousand, one hundred three".