20110020112001 has 4 divisors (see below), whose sum is σ = 20120665968900. Its totient is φ = 20099374255104.

The previous prime is 20110020111947. The next prime is 20110020112019. The reversal of 20110020112001 is 10021102001102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15210592805776 + 4899427306225 = 3900076^2 + 2213465^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110020112001 - 2¹⁰ = 20110020110977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110020012001) 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, 5322925616 + ... + 5322929393.

It is an arithmetic number, because the mean of its divisors is an integer number (5030166492225).

Almost surely, 2^{20110020112001} is an apocalyptic number.

It is an amenable number.

20110020112001 is a deficient number, since it is larger than the sum of its proper divisors (10645856899).

20110020112001 is a wasteful number, since it uses less digits than its factorization.

20110020112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10645856898.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20110020112001 its reverse (10021102001102), we get a palindrome (30131122113103).

The spelling of 20110020112001 in words is "twenty trillion, one hundred ten billion, twenty million, one hundred twelve thousand, one".