1013320221289 has 2 divisors, whose sum is σ = 1013320221290. Its totient is φ = 1013320221288.

The previous prime is 1013320221283. The next prime is 1013320221293. The reversal of 1013320221289 is 9821220233101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952146608400 + 61173612889 = 975780^2 + 247333^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013320221289 - 2³ = 1013320221281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1013320221281) 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, 506660110644 + 506660110645.

It is an arithmetic number, because the mean of its divisors is an integer number (506660110645).

Almost surely, 2^{1013320221289} is an apocalyptic number.

It is an amenable number.

1013320221289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013320221289 is an equidigital number, since it uses as much as digits as its factorization.

1013320221289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 1013320221289 in words is "one trillion, thirteen billion, three hundred twenty million, two hundred twenty-one thousand, two hundred eighty-nine".