1100202113321 has 2 divisors, whose sum is σ = 1100202113322. Its totient is φ = 1100202113320.

The previous prime is 1100202113317. The next prime is 1100202113383. The reversal of 1100202113321 is 1233112020011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 884237434921 + 215964678400 = 940339^2 + 464720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100202113321 - 2² = 1100202113317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1100202113321.

It is not a weakly prime, because it can be changed into another prime (1100202113921) 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, 550101056660 + 550101056661.

It is an arithmetic number, because the mean of its divisors is an integer number (550101056661).

Almost surely, 2^{1100202113321} is an apocalyptic number.

It is an amenable number.

1100202113321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100202113321 is an equidigital number, since it uses as much as digits as its factorization.

1100202113321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1100202113321 its reverse (1233112020011), we get a palindrome (2333314133332).

The spelling of 1100202113321 in words is "one trillion, one hundred billion, two hundred two million, one hundred thirteen thousand, three hundred twenty-one".