2021983281001 has 2 divisors, whose sum is σ = 2021983281002. Its totient is φ = 2021983281000.

The previous prime is 2021983280927. The next prime is 2021983281007. The reversal of 2021983281001 is 1001823891202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1334868283225 + 687114997776 = 1155365^2 + 828924^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021983281001 - 2¹³ = 2021983272809 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021983281007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010991640500 + 1010991640501.

It is an arithmetic number, because the mean of its divisors is an integer number (1010991640501).

Almost surely, 2^{2021983281001} is an apocalyptic number.

It is an amenable number.

2021983281001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021983281001 is an equidigital number, since it uses as much as digits as its factorization.

2021983281001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 2021983281001 in words is "two trillion, twenty-one billion, nine hundred eighty-three million, two hundred eighty-one thousand, one".