20102100001111 has 8 divisors (see below), whose sum is σ = 20345269190400. Its totient is φ = 19858954031352.

The previous prime is 20102100001099. The next prime is 20102100001127. The reversal of 20102100001111 is 11110000120102.

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 20102100001111 - 2²³ = 20102091612503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102100004111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4059775 + ... + 7529008.

It is an arithmetic number, because the mean of its divisors is an integer number (2543158648800).

Almost surely, 2^{20102100001111} is an apocalyptic number.

20102100001111 is a deficient number, since it is larger than the sum of its proper divisors (243169189289).

20102100001111 is a wasteful number, since it uses less digits than its factorization.

20102100001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11609765.

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

Adding to 20102100001111 its reverse (11110000120102), we get a palindrome (31212100121213).

The spelling of 20102100001111 in words is "twenty trillion, one hundred two billion, one hundred million, one thousand, one hundred eleven".