11156240201 has 2 divisors, whose sum is σ = 11156240202. Its totient is φ = 11156240200.

The previous prime is 11156240171. The next prime is 11156240281. The reversal of 11156240201 is 10204265111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8441934400 + 2714305801 = 91880^2 + 52099^2 .

It is an emirp because it is prime and its reverse (10204265111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11156240201 - 2²² = 11152045897 is a prime.

It is not a weakly prime, because it can be changed into another prime (11156240281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5578120100 + 5578120101.

It is an arithmetic number, because the mean of its divisors is an integer number (5578120101).

Almost surely, 2^11156240201 is an apocalyptic number.

It is an amenable number.

11156240201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11156240201 is an equidigital number, since it uses as much as digits as its factorization.

11156240201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

The spelling of 11156240201 in words is "eleven billion, one hundred fifty-six million, two hundred forty thousand, two hundred one".