1321100341069 has 2 divisors, whose sum is σ = 1321100341070. Its totient is φ = 1321100341068.

The previous prime is 1321100340997. The next prime is 1321100341087. The reversal of 1321100341069 is 9601430011231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1285135115044 + 35965226025 = 1133638^2 + 189645^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321100341069 - 2¹¹ = 1321100339021 is a prime.

It is a super-2 number, since 2×1321100341069² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1321100341069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321100341369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660550170534 + 660550170535.

It is an arithmetic number, because the mean of its divisors is an integer number (660550170535).

Almost surely, 2^{1321100341069} is an apocalyptic number.

It is an amenable number.

1321100341069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321100341069 is an equidigital number, since it uses as much as digits as its factorization.

1321100341069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 1321100341069 in words is "one trillion, three hundred twenty-one billion, one hundred million, three hundred forty-one thousand, sixty-nine".