1021305504223 has 2 divisors, whose sum is σ = 1021305504224. Its totient is φ = 1021305504222.

The previous prime is 1021305504221. The next prime is 1021305504229. The reversal of 1021305504223 is 3224055031201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021305504223 - 2¹ = 1021305504221 is a prime.

Together with 1021305504221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1021305504191 and 1021305504200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021305504221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510652752111 + 510652752112.

It is an arithmetic number, because the mean of its divisors is an integer number (510652752112).

Almost surely, 2^{1021305504223} is an apocalyptic number.

1021305504223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021305504223 is an equidigital number, since it uses as much as digits as its factorization.

1021305504223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 1021305504223 in words is "one trillion, twenty-one billion, three hundred five million, five hundred four thousand, two hundred twenty-three".