42120043320103 has 8 divisors (see below), whose sum is σ = 48268356380672. Its totient is φ = 36004521263256.

The previous prime is 42120043320097. The next prime is 42120043320127. The reversal of 42120043320103 is 30102334002124.

42120043320103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-42120043320103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42120043320703) 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, 8197748175 + ... + 8197753312.

It is an arithmetic number, because the mean of its divisors is an integer number (6033544547584).

Almost surely, 2^{42120043320103} is an apocalyptic number.

42120043320103 is a deficient number, since it is larger than the sum of its proper divisors (6148313060569).

42120043320103 is a wasteful number, since it uses less digits than its factorization.

42120043320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16395501861.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 42120043320103 its reverse (30102334002124), we get a palindrome (72222377322227).

The spelling of 42120043320103 in words is "forty-two trillion, one hundred twenty billion, forty-three million, three hundred twenty thousand, one hundred three".