2020121121287 has 2 divisors, whose sum is σ = 2020121121288. Its totient is φ = 2020121121286.

The previous prime is 2020121121199. The next prime is 2020121121341. The reversal of 2020121121287 is 7821211210202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020121121287 - 2¹⁰ = 2020121120263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020121129287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010060560643 + 1010060560644.

It is an arithmetic number, because the mean of its divisors is an integer number (1010060560644).

Almost surely, 2^{2020121121287} is an apocalyptic number.

2020121121287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020121121287 is an equidigital number, since it uses as much as digits as its factorization.

2020121121287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 29.

Adding to 2020121121287 its reverse (7821211210202), we get a palindrome (9841332331489).

The spelling of 2020121121287 in words is "two trillion, twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred eighty-seven".