11013121201 has 2 divisors, whose sum is σ = 11013121202. Its totient is φ = 11013121200.

The previous prime is 11013121187. The next prime is 11013121241. The reversal of 11013121201 is 10212131011.

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., 6699258801 + 4313862400 = 81849^2 + 65680^2 .

It is a cyclic number.

It is not a de Polignac number, because 11013121201 - 2²⁵ = 10979566769 is a prime.

It is not a weakly prime, because it can be changed into another prime (11013121241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506560600 + 5506560601.

It is an arithmetic number, because the mean of its divisors is an integer number (5506560601).

Almost surely, 2^11013121201 is an apocalyptic number.

It is an amenable number.

11013121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013121201 is an equidigital number, since it uses as much as digits as its factorization.

11013121201 is an evil number, because the sum of its binary digits is even.

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

Adding to 11013121201 its reverse (10212131011), we get a palindrome (21225252212).

The spelling of 11013121201 in words is "eleven billion, thirteen million, one hundred twenty-one thousand, two hundred one".