1021102259 has 2 divisors, whose sum is σ = 1021102260. Its totient is φ = 1021102258.

The previous prime is 1021102193. The next prime is 1021102261. The reversal of 1021102259 is 9522011201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021102259 - 2⁸ = 1021102003 is a prime.

It is a Sophie Germain prime.

Together with 1021102261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1021102279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510551129 + 510551130.

It is an arithmetic number, because the mean of its divisors is an integer number (510551130).

Almost surely, 2^1021102259 is an apocalyptic number.

1021102259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021102259 is an equidigital number, since it uses as much as digits as its factorization.

1021102259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1021102259 is about 31954.6907198302. The cubic root of 1021102259 is about 1006.9851799852.

The spelling of 1021102259 in words is "one billion, twenty-one million, one hundred two thousand, two hundred fifty-nine".