10421000001 has 20 divisors (see below), whose sum is σ = 15576295152. Its totient is φ = 6943262328.

The previous prime is 10420999993. The next prime is 10421000033. The reversal of 10421000001 is 10000012401.

It is a happy number.

10421000001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10421000001 - 2³ = 10420999993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10421000101) 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 19 ways as a sum of consecutive naturals, for example, 104686 + ... + 178328.

Almost surely, 2^10421000001 is an apocalyptic number.

It is an amenable number.

10421000001 is a deficient number, since it is larger than the sum of its proper divisors (5155295151).

10421000001 is an equidigital number, since it uses as much as digits as its factorization.

10421000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75402 (or 75393 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10421000001 its reverse (10000012401), we get a palindrome (20421012402).

The spelling of 10421000001 in words is "ten billion, four hundred twenty-one million, one", and thus it is an aban number.