10420642443 has 4 divisors (see below), whose sum is σ = 13894189928. Its totient is φ = 6947094960.

The previous prime is 10420642433. The next prime is 10420642501. The reversal of 10420642443 is 34424602401.

10420642443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10420642443 - 2⁸ = 10420642187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10420642443.

It is not an unprimeable number, because it can be changed into a prime (10420642433) 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, 1736773738 + ... + 1736773743.

It is an arithmetic number, because the mean of its divisors is an integer number (3473547482).

Almost surely, 2^10420642443 is an apocalyptic number.

10420642443 is a deficient number, since it is larger than the sum of its proper divisors (3473547485).

10420642443 is an equidigital number, since it uses as much as digits as its factorization.

10420642443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473547484.

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 10420642443 in words is "ten billion, four hundred twenty million, six hundred forty-two thousand, four hundred forty-three".