1021056263 has 2 divisors, whose sum is σ = 1021056264. Its totient is φ = 1021056262.

The previous prime is 1021056221. The next prime is 1021056317. The reversal of 1021056263 is 3626501201.

1021056263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021056263 - 2⁸ = 1021056007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021056163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510528131 + 510528132.

It is an arithmetic number, because the mean of its divisors is an integer number (510528132).

Almost surely, 2^1021056263 is an apocalyptic number.

1021056263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021056263 is an equidigital number, since it uses as much as digits as its factorization.

1021056263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1021056263 is about 31953.9710051818. The cubic root of 1021056263 is about 1006.9700597282.

Adding to 1021056263 its reverse (3626501201), we get a palindrome (4647557464).

The spelling of 1021056263 in words is "one billion, twenty-one million, fifty-six thousand, two hundred sixty-three".