1282323520189 has 2 divisors, whose sum is σ = 1282323520190. Its totient is φ = 1282323520188.

The previous prime is 1282323520069. The next prime is 1282323520207. The reversal of 1282323520189 is 9810253232821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1275187494564 + 7136025625 = 1129242^2 + 84475^2 .

It is an emirp because it is prime and its reverse (9810253232821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1282323520189 - 2⁹ = 1282323519677 is a prime.

It is a super-2 number, since 2×1282323520189² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1282323580189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641161760094 + 641161760095.

It is an arithmetic number, because the mean of its divisors is an integer number (641161760095).

Almost surely, 2^{1282323520189} is an apocalyptic number.

It is an amenable number.

1282323520189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282323520189 is an equidigital number, since it uses as much as digits as its factorization.

1282323520189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 1282323520189 in words is "one trillion, two hundred eighty-two billion, three hundred twenty-three million, five hundred twenty thousand, one hundred eighty-nine".