2020111019 has 4 divisors (see below), whose sum is σ = 2021391960. Its totient is φ = 2018830080.

The previous prime is 2020111013. The next prime is 2020111031. The reversal of 2020111019 is 9101110202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020111019 is a prime.

It is a super-2 number, since 2×2020111019² = 8161697058170436722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020110988 and 2020111006.

It is not an unprimeable number, because it can be changed into a prime (2020111013) 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, 638102 + ... + 641259.

It is an arithmetic number, because the mean of its divisors is an integer number (505347990).

Almost surely, 2^2020111019 is an apocalyptic number.

2020111019 is a deficient number, since it is larger than the sum of its proper divisors (1280941).

2020111019 is a wasteful number, since it uses less digits than its factorization.

2020111019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280940.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 2020111019 is about 44945.6451616839. The cubic root of 2020111019 is about 1264.1300228351.

The spelling of 2020111019 in words is "two billion, twenty million, one hundred eleven thousand, nineteen".