20100002011001 has 16 divisors (see below), whose sum is σ = 22144776667200. Its totient is φ = 18091484184000.

The previous prime is 20100002010997. The next prime is 20100002011051. The reversal of 20100002011001 is 10011020000102.

It is a cyclic number.

It is not a de Polignac number, because 20100002011001 - 2² = 20100002010997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20100002011001.

It is not an unprimeable number, because it can be changed into a prime (20100002011051) 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, 78329615 + ... + 78585803.

It is an arithmetic number, because the mean of its divisors is an integer number (1384048541700).

Almost surely, 2^{20100002011001} is an apocalyptic number.

It is an amenable number.

20100002011001 is a deficient number, since it is larger than the sum of its proper divisors (2044774656199).

20100002011001 is a wasteful number, since it uses less digits than its factorization.

20100002011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326920.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20100002011001 its reverse (10011020000102), we get a palindrome (30111022011103).

The spelling of 20100002011001 in words is "twenty trillion, one hundred billion, two million, eleven thousand, one".