2020001023121 has 2 divisors, whose sum is σ = 2020001023122. Its totient is φ = 2020001023120.

The previous prime is 2020001023111. The next prime is 2020001023127. The reversal of 2020001023121 is 1213201000202.

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., 1609254622096 + 410746401025 = 1268564^2 + 640895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020001023121 - 2⁶ = 2020001023057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020001023096 and 2020001023105.

It is not a weakly prime, because it can be changed into another prime (2020001023127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010000511560 + 1010000511561.

It is an arithmetic number, because the mean of its divisors is an integer number (1010000511561).

Almost surely, 2^{2020001023121} is an apocalyptic number.

It is an amenable number.

2020001023121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020001023121 is an equidigital number, since it uses as much as digits as its factorization.

2020001023121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2020001023121 its reverse (1213201000202), we get a palindrome (3233202023323).

The spelling of 2020001023121 in words is "two trillion, twenty billion, one million, twenty-three thousand, one hundred twenty-one".