20910001000001 has 8 divisors (see below), whose sum is σ = 20978277825120. Its totient is φ = 20841725253888.

The previous prime is 20910000999947. The next prime is 20910001000027. The reversal of 20910001000001 is 10000010001902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20910001000001 - 2³⁴ = 20892821130817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20910001000001.

It is not an unprimeable number, because it can be changed into a prime (20910001000061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61838945 + ... + 62176161.

It is an arithmetic number, because the mean of its divisors is an integer number (2622284728140).

Almost surely, 2^{20910001000001} is an apocalyptic number.

It is an amenable number.

20910001000001 is a deficient number, since it is larger than the sum of its proper divisors (68276825119).

20910001000001 is a wasteful number, since it uses less digits than its factorization.

20910001000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539503.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 20910001000001 its reverse (10000010001902), we get a palindrome (30910011001903).

The spelling of 20910001000001 in words is "twenty trillion, nine hundred ten billion, one million, one", and thus it is an aban number.