42170812003 has 2 divisors, whose sum is σ = 42170812004. Its totient is φ = 42170812002.

The previous prime is 42170812001. The next prime is 42170812067. The reversal of 42170812003 is 30021807124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42170812003 - 2¹ = 42170812001 is a prime.

Together with 42170812001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42170812001) 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 as a sum of consecutive naturals, namely, 21085406001 + 21085406002.

It is an arithmetic number, because the mean of its divisors is an integer number (21085406002).

Almost surely, 2^42170812003 is an apocalyptic number.

42170812003 is a deficient number, since it is larger than the sum of its proper divisors (1).

42170812003 is an equidigital number, since it uses as much as digits as its factorization.

42170812003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 42170812003 in words is "forty-two billion, one hundred seventy million, eight hundred twelve thousand, three".