1102102121321 has 2 divisors, whose sum is σ = 1102102121322. Its totient is φ = 1102102121320.

The previous prime is 1102102121279. The next prime is 1102102121327. The reversal of 1102102121321 is 1231212012011.

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., 588694045696 + 513408075625 = 767264^2 + 716525^2 .

It is an emirp because it is prime and its reverse (1231212012011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1102102121321 - 2³⁰ = 1101028379497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1102102121321.

It is not a weakly prime, because it can be changed into another prime (1102102121327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551051060660 + 551051060661.

It is an arithmetic number, because the mean of its divisors is an integer number (551051060661).

Almost surely, 2^{1102102121321} is an apocalyptic number.

It is an amenable number.

1102102121321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102102121321 is an equidigital number, since it uses as much as digits as its factorization.

1102102121321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1102102121321 its reverse (1231212012011), we get a palindrome (2333314133332).

The spelling of 1102102121321 in words is "one trillion, one hundred two billion, one hundred two million, one hundred twenty-one thousand, three hundred twenty-one".