1103301320021 has 2 divisors, whose sum is σ = 1103301320022. Its totient is φ = 1103301320020.

The previous prime is 1103301319997. The next prime is 1103301320047. The reversal of 1103301320021 is 1200231033011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1074309447121 + 28991872900 = 1036489^2 + 170270^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103301320021 - 2⁶ = 1103301319957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103301320321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551650660010 + 551650660011.

It is an arithmetic number, because the mean of its divisors is an integer number (551650660011).

Almost surely, 2^{1103301320021} is an apocalyptic number.

It is an amenable number.

1103301320021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103301320021 is an equidigital number, since it uses as much as digits as its factorization.

1103301320021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1103301320021 its reverse (1200231033011), we get a palindrome (2303532353032).

The spelling of 1103301320021 in words is "one trillion, one hundred three billion, three hundred one million, three hundred twenty thousand, twenty-one".