1321102243297 has 2 divisors, whose sum is σ = 1321102243298. Its totient is φ = 1321102243296.

The previous prime is 1321102243289. The next prime is 1321102243427. The reversal of 1321102243297 is 7923422011231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1117589379921 + 203512863376 = 1057161^2 + 451124^2 .

It is an emirp because it is prime and its reverse (7923422011231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1321102243297 - 2³ = 1321102243289 is a prime.

It is a super-2 number, since 2×1321102243297² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1321102243267) 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, 660551121648 + 660551121649.

It is an arithmetic number, because the mean of its divisors is an integer number (660551121649).

Almost surely, 2^{1321102243297} is an apocalyptic number.

It is an amenable number.

1321102243297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321102243297 is an equidigital number, since it uses as much as digits as its factorization.

1321102243297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 1321102243297 in words is "one trillion, three hundred twenty-one billion, one hundred two million, two hundred forty-three thousand, two hundred ninety-seven".