2020100109 has 4 divisors (see below), whose sum is σ = 2693466816. Its totient is φ = 1346733404.

The previous prime is 2020100087. The next prime is 2020100111. The reversal of 2020100109 is 9010010202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2020100109 - 2⁵ = 2020100077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020100119) 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, 336683349 + ... + 336683354.

It is an arithmetic number, because the mean of its divisors is an integer number (673366704).

Almost surely, 2^2020100109 is an apocalyptic number.

It is an amenable number.

2020100109 is a deficient number, since it is larger than the sum of its proper divisors (673366707).

2020100109 is an equidigital number, since it uses as much as digits as its factorization.

2020100109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673366706.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2020100109 is about 44945.5237926982. The cubic root of 2020100109 is about 1264.1277471048.

The spelling of 2020100109 in words is "two billion, twenty million, one hundred thousand, one hundred nine".