11111110201 has 2 divisors, whose sum is σ = 11111110202. Its totient is φ = 11111110200.

The previous prime is 11111110163. The next prime is 11111110207. The reversal of 11111110201 is 10201111111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5919763600 + 5191346601 = 76940^2 + 72051^2 .

It is an emirp because it is prime and its reverse (10201111111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11111110201 - 2¹⁷ = 11110979129 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111110207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555555100 + 5555555101.

It is an arithmetic number, because the mean of its divisors is an integer number (5555555101).

Almost surely, 2^11111110201 is an apocalyptic number.

It is an amenable number.

11111110201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111110201 is an equidigital number, since it uses as much as digits as its factorization.

11111110201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11111110201 its reverse (10201111111), we get a palindrome (21312221312).

It can be divided in two parts, 111111 and 10201, that multiplied together give a palindrome (1133443311).

The spelling of 11111110201 in words is "eleven billion, one hundred eleven million, one hundred ten thousand, two hundred one".