2020201023121 has 2 divisors, whose sum is σ = 2020201023122. Its totient is φ = 2020201023120.

The previous prime is 2020201023107. The next prime is 2020201023133. The reversal of 2020201023121 is 1213201020202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2019422892096 + 778131025 = 1421064^2 + 27895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020201023121 - 2¹¹ = 2020201021073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020201023095 and 2020201023104.

It is not a weakly prime, because it can be changed into another prime (2020201023101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010100511560 + 1010100511561.

It is an arithmetic number, because the mean of its divisors is an integer number (1010100511561).

Almost surely, 2^{2020201023121} is an apocalyptic number.

It is an amenable number.

2020201023121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020201023121 is an equidigital number, since it uses as much as digits as its factorization.

2020201023121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2020201023121 its reverse (1213201020202), we get a palindrome (3233402043323).

The spelling of 2020201023121 in words is "two trillion, twenty billion, two hundred one million, twenty-three thousand, one hundred twenty-one".