1100320110121 has 2 divisors, whose sum is σ = 1100320110122. Its totient is φ = 1100320110120.

The previous prime is 1100320110119. The next prime is 1100320110167. The reversal of 1100320110121 is 1210110230011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1006338010896 + 93982099225 = 1003164^2 + 306565^2 .

It is an emirp because it is prime and its reverse (1210110230011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100320110121 - 2¹ = 1100320110119 is a prime.

Together with 1100320110119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1100320110821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550160055060 + 550160055061.

It is an arithmetic number, because the mean of its divisors is an integer number (550160055061).

Almost surely, 2^{1100320110121} is an apocalyptic number.

It is an amenable number.

1100320110121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100320110121 is an equidigital number, since it uses as much as digits as its factorization.

1100320110121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1100320110121 its reverse (1210110230011), we get a palindrome (2310430340132).

The spelling of 1100320110121 in words is "one trillion, one hundred billion, three hundred twenty million, one hundred ten thousand, one hundred twenty-one".