11011201321 has 2 divisors, whose sum is σ = 11011201322. Its totient is φ = 11011201320.

The previous prime is 11011201277. The next prime is 11011201339. The reversal of 11011201321 is 12310211011.

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., 9103258921 + 1907942400 = 95411^2 + 43680^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011201321 - 2⁷ = 11011201193 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011201381) 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, 5505600660 + 5505600661.

It is an arithmetic number, because the mean of its divisors is an integer number (5505600661).

Almost surely, 2^11011201321 is an apocalyptic number.

It is an amenable number.

11011201321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011201321 is an equidigital number, since it uses as much as digits as its factorization.

11011201321 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 11011201321 its reverse (12310211011), we get a palindrome (23321412332).

The spelling of 11011201321 in words is "eleven billion, eleven million, two hundred one thousand, three hundred twenty-one".