10420020443 has 16 divisors (see below), whose sum is σ = 12612579264. Its totient is φ = 8403747840.

The previous prime is 10420020439. The next prime is 10420020463. The reversal of 10420020443 is 34402002401.

It is a cyclic number.

It is not a de Polignac number, because 10420020443 - 2² = 10420020439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10420020433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518621 + ... + 538337.

It is an arithmetic number, because the mean of its divisors is an integer number (788286204).

Almost surely, 2^10420020443 is an apocalyptic number.

10420020443 is a deficient number, since it is larger than the sum of its proper divisors (2192558821).

10420020443 is a wasteful number, since it uses less digits than its factorization.

10420020443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24182.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 10420020443 its reverse (34402002401), we get a palindrome (44822022844).

The spelling of 10420020443 in words is "ten billion, four hundred twenty million, twenty thousand, four hundred forty-three".