2020011121 has 2 divisors, whose sum is σ = 2020011122. Its totient is φ = 2020011120.

The previous prime is 2020011079. The next prime is 2020011137. The reversal of 2020011121 is 1211100202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1477633600 + 542377521 = 38440^2 + 23289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020011121 - 2¹⁵ = 2019978353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020011098 and 2020011107.

It is not a weakly prime, because it can be changed into another prime (2020017121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010005560 + 1010005561.

It is an arithmetic number, because the mean of its divisors is an integer number (1010005561).

Almost surely, 2^2020011121 is an apocalyptic number.

It is an amenable number.

2020011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020011121 is an equidigital number, since it uses as much as digits as its factorization.

2020011121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2020011121 is about 44944.5338278194. The cubic root of 2020011121 is about 1264.1091846828.

Adding to 2020011121 its reverse (1211100202), we get a palindrome (3231111323).

The spelling of 2020011121 in words is "two billion, twenty million, eleven thousand, one hundred twenty-one".