11103001321 has 2 divisors, whose sum is σ = 11103001322. Its totient is φ = 11103001320.

The previous prime is 11103001313. The next prime is 11103001331. The reversal of 11103001321 is 12310030111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10704799296 + 398202025 = 103464^2 + 19955^2 .

It is an emirp because it is prime and its reverse (12310030111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11103001321 - 2³ = 11103001313 is a prime.

It is not a weakly prime, because it can be changed into another prime (11103001331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551500660 + 5551500661.

It is an arithmetic number, because the mean of its divisors is an integer number (5551500661).

Almost surely, 2^11103001321 is an apocalyptic number.

It is an amenable number.

11103001321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11103001321 is an equidigital number, since it uses as much as digits as its factorization.

11103001321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11103001321 its reverse (12310030111), we get a palindrome (23413031432).

The spelling of 11103001321 in words is "eleven billion, one hundred three million, one thousand, three hundred twenty-one".