2020011111011 has 4 divisors (see below), whose sum is σ = 2020014006192. Its totient is φ = 2020008215832.

The previous prime is 2020011110993. The next prime is 2020011111029. The reversal of 2020011111011 is 1101111100202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2020011110993) and next prime (2020011111029).

It is a cyclic number.

It is not a de Polignac number, because 2020011111011 - 2³⁰ = 2018937369187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020011110983 and 2020011111001.

It is not an unprimeable number, because it can be changed into a prime (2020011111061) 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, 311621 + ... + 2033993.

It is an arithmetic number, because the mean of its divisors is an integer number (505003501548).

Almost surely, 2^{2020011111011} is an apocalyptic number.

2020011111011 is a deficient number, since it is larger than the sum of its proper divisors (2895181).

2020011111011 is a wasteful number, since it uses less digits than its factorization.

2020011111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895180.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2020011111011 its reverse (1101111100202), we get a palindrome (3121122211213).

The spelling of 2020011111011 in words is "two trillion, twenty billion, eleven million, one hundred eleven thousand, eleven".