2020111000121 has 4 divisors (see below), whose sum is σ = 2021969428992. Its totient is φ = 2018252571252.

The previous prime is 2020111000109. The next prime is 2020111000139. The reversal of 2020111000121 is 1210001110202.

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 2020111000121 - 2¹⁰ = 2020110999097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020111000321) 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, 929212805 + ... + 929214978.

It is an arithmetic number, because the mean of its divisors is an integer number (505492357248).

Almost surely, 2^{2020111000121} is an apocalyptic number.

It is an amenable number.

2020111000121 is a deficient number, since it is larger than the sum of its proper divisors (1858428871).

2020111000121 is a wasteful number, since it uses less digits than its factorization.

2020111000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858428870.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2020111000121 its reverse (1210001110202), we get a palindrome (3230112110323).

The spelling of 2020111000121 in words is "two trillion, twenty billion, one hundred eleven million, one hundred twenty-one", and thus it is an aban number.