20101020001 has 8 divisors (see below), whose sum is σ = 20146785984. Its totient is φ = 20055307440.

The previous prime is 20101019959. The next prime is 20101020013. The reversal of 20101020001 is 10002010102.

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 20101020001 - 2¹³ = 20101011809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101020041) 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 7 ways as a sum of consecutive naturals, for example, 794590 + ... + 819496.

It is an arithmetic number, because the mean of its divisors is an integer number (2518348248).

Almost surely, 2^20101020001 is an apocalyptic number.

It is an amenable number.

20101020001 is a deficient number, since it is larger than the sum of its proper divisors (45765983).

20101020001 is an equidigital number, since it uses as much as digits as its factorization.

20101020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26711.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20101020001 its reverse (10002010102), we get a palindrome (30103030103).

The spelling of 20101020001 in words is "twenty billion, one hundred one million, twenty thousand, one".