20210111101109 has 8 divisors (see below), whose sum is σ = 20556847504320. Its totient is φ = 19863514436256.

The previous prime is 20210111101049. The next prime is 20210111101129. The reversal of 20210111101109 is 90110111101202.

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 20210111101109 - 2⁸ = 20210111100853 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 (20210111101129) 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, 34642832 + ... + 35221385.

It is an arithmetic number, because the mean of its divisors is an integer number (2569605938040).

Almost surely, 2^{20210111101109} is an apocalyptic number.

It is an amenable number.

20210111101109 is a deficient number, since it is larger than the sum of its proper divisors (346736403211).

20210111101109 is an equidigital number, since it uses as much as digits as its factorization.

20210111101109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69869179.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 20210111101109 in words is "twenty trillion, two hundred ten billion, one hundred eleven million, one hundred one thousand, one hundred nine".