283881020021 has 2 divisors, whose sum is σ = 283881020022. Its totient is φ = 283881020020.

The previous prime is 283881019979. The next prime is 283881020047. The reversal of 283881020021 is 120020188382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228951723121 + 54929296900 = 478489^2 + 234370^2 .

It is a cyclic number.

It is not a de Polignac number, because 283881020021 - 2¹⁸ = 283880757877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (283881020321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141940510010 + 141940510011.

It is an arithmetic number, because the mean of its divisors is an integer number (141940510011).

Almost surely, 2^283881020021 is an apocalyptic number.

It is an amenable number.

283881020021 is a deficient number, since it is larger than the sum of its proper divisors (1).

283881020021 is an equidigital number, since it uses as much as digits as its factorization.

283881020021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 35.

The spelling of 283881020021 in words is "two hundred eighty-three billion, eight hundred eighty-one million, twenty thousand, twenty-one".