10420890001 has 4 divisors (see below), whose sum is σ = 10421228772. Its totient is φ = 10420551232.

The previous prime is 10420889989. The next prime is 10420890017. The reversal of 10420890001 is 10009802401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10009802401 = 100049².

It can be written as a sum of positive squares in 2 ways, for example, as 7396000000 + 3024890001 = 86000^2 + 54999^2 .

It is a cyclic number.

It is not a de Polignac number, because 10420890001 - 2⁹ = 10420889489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10420896001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118060 + ... + 186493.

It is an arithmetic number, because the mean of its divisors is an integer number (2605307193).

Almost surely, 2^10420890001 is an apocalyptic number.

It is an amenable number.

10420890001 is a deficient number, since it is larger than the sum of its proper divisors (338771).

10420890001 is an equidigital number, since it uses as much as digits as its factorization.

10420890001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338770.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 10420890001 in words is "ten billion, four hundred twenty million, eight hundred ninety thousand, one".