11011111121141 has 2 divisors, whose sum is σ = 11011111121142. Its totient is φ = 11011111121140.

The previous prime is 11011111121093. The next prime is 11011111121161. The reversal of 11011111121141 is 14112111111011.

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., 9980386680625 + 1030724440516 = 3159175^2 + 1015246^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011111121141 - 2¹⁴ = 11011111104757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011111121161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505555560570 + 5505555560571.

It is an arithmetic number, because the mean of its divisors is an integer number (5505555560571).

Almost surely, 2^{11011111121141} is an apocalyptic number.

It is an amenable number.

11011111121141 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011111121141 is an equidigital number, since it uses as much as digits as its factorization.

11011111121141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 11011111121141 its reverse (14112111111011), we get a palindrome (25123222232152).

The spelling of 11011111121141 in words is "eleven trillion, eleven billion, one hundred eleven million, one hundred twenty-one thousand, one hundred forty-one".