42145330503 has 4 divisors (see below), whose sum is σ = 56193774008. Its totient is φ = 28096887000.

The previous prime is 42145330501. The next prime is 42145330537. The reversal of 42145330503 is 30503354124.

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

It is not a de Polignac number, because 42145330503 - 2¹ = 42145330501 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 (42145330501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7024221748 + ... + 7024221753.

It is an arithmetic number, because the mean of its divisors is an integer number (14048443502).

Almost surely, 2^42145330503 is an apocalyptic number.

42145330503 is a deficient number, since it is larger than the sum of its proper divisors (14048443505).

42145330503 is a wasteful number, since it uses less digits than its factorization.

42145330503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14048443504.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 42145330503 its reverse (30503354124), we get a palindrome (72648684627).

The spelling of 42145330503 in words is "forty-two billion, one hundred forty-five million, three hundred thirty thousand, five hundred three".