2020111211109 has 16 divisors (see below), whose sum is σ = 2798037938304. Its totient is φ = 1295387923200.

The previous prime is 2020111211021. The next prime is 2020111211143. The reversal of 2020111211109 is 9011121110202.

It is not a de Polignac number, because 2020111211109 - 2¹⁵ = 2020111178341 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020111211009) 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 15 ways as a sum of consecutive naturals, for example, 115650904 + ... + 115668369.

It is an arithmetic number, because the mean of its divisors is an integer number (174877371144).

Almost surely, 2^{2020111211109} is an apocalyptic number.

It is an amenable number.

2020111211109 is a deficient number, since it is larger than the sum of its proper divisors (777926727195).

2020111211109 is a wasteful number, since it uses less digits than its factorization.

2020111211109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231319388.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 2020111211109 in words is "two trillion, twenty billion, one hundred eleven million, two hundred eleven thousand, one hundred nine".