20002000100001 has 4 divisors (see below), whose sum is σ = 26669333466672. Its totient is φ = 13334666733332.

The previous prime is 20002000099997. The next prime is 20002000100029. The reversal of 20002000100001 is 10000100020002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20002000100001 - 2² = 20002000099997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002000100041) 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, 3333666683331 + ... + 3333666683336.

It is an arithmetic number, because the mean of its divisors is an integer number (6667333366668).

Almost surely, 2^{20002000100001} is an apocalyptic number.

It is an amenable number.

20002000100001 is a deficient number, since it is larger than the sum of its proper divisors (6667333366671).

20002000100001 is an equidigital number, since it uses as much as digits as its factorization.

20002000100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667333366670.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20002000100001 its reverse (10000100020002), we get a palindrome (30002100120003).

The spelling of 20002000100001 in words is "twenty trillion, two billion, one hundred thousand, one".