20011102101001 has 8 divisors (see below), whose sum is σ = 21837524205600. Its totient is φ = 18185885163840.

The previous prime is 20011102100999. The next prime is 20011102101013. The reversal of 20011102101001 is 10010120111002.

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 20011102101001 - 2¹ = 20011102100999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011102101101) 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, 301257136 + ... + 301323553.

It is an arithmetic number, because the mean of its divisors is an integer number (2729690525700).

Almost surely, 2^{20011102101001} is an apocalyptic number.

It is an amenable number.

20011102101001 is a deficient number, since it is larger than the sum of its proper divisors (1826422104599).

20011102101001 is a wasteful number, since it uses less digits than its factorization.

20011102101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602583719.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20011102101001 its reverse (10010120111002), we get a palindrome (30021222212003).

The spelling of 20011102101001 in words is "twenty trillion, eleven billion, one hundred two million, one hundred one thousand, one".