1323001042289 has 2 divisors, whose sum is σ = 1323001042290. Its totient is φ = 1323001042288.

The previous prime is 1323001042183. The next prime is 1323001042303. The reversal of 1323001042289 is 9822401003231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 819220491664 + 503780550625 = 905108^2 + 709775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323001042289 - 2²⁴ = 1322984265073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323001042589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661500521144 + 661500521145.

It is an arithmetic number, because the mean of its divisors is an integer number (661500521145).

Almost surely, 2^{1323001042289} is an apocalyptic number.

It is an amenable number.

1323001042289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323001042289 is an equidigital number, since it uses as much as digits as its factorization.

1323001042289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 1323001042289 in words is "one trillion, three hundred twenty-three billion, one million, forty-two thousand, two hundred eighty-nine".