21012003283 has 2 divisors, whose sum is σ = 21012003284. Its totient is φ = 21012003282.

The previous prime is 21012003269. The next prime is 21012003323. The reversal of 21012003283 is 38230021012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21012003283 - 2¹³ = 21011995091 is a prime.

It is not a weakly prime, because it can be changed into another prime (21012033283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506001641 + 10506001642.

It is an arithmetic number, because the mean of its divisors is an integer number (10506001642).

Almost surely, 2^21012003283 is an apocalyptic number.

21012003283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21012003283 is an equidigital number, since it uses as much as digits as its factorization.

21012003283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21012003283 its reverse (38230021012), we get a palindrome (59242024295).

The spelling of 21012003283 in words is "twenty-one billion, twelve million, three thousand, two hundred eighty-three".