11111020211041 has 2 divisors, whose sum is σ = 11111020211042. Its totient is φ = 11111020211040.

The previous prime is 11111020210951. The next prime is 11111020211107. The reversal of 11111020211041 is 14011202011111.

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., 8384875792225 + 2726144418816 = 2895665^2 + 1651104^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111020211041 - 2⁹ = 11111020210529 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111020212041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555510105520 + 5555510105521.

It is an arithmetic number, because the mean of its divisors is an integer number (5555510105521).

Almost surely, 2^{11111020211041} is an apocalyptic number.

It is an amenable number.

11111020211041 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111020211041 is an equidigital number, since it uses as much as digits as its factorization.

11111020211041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11111020211041 its reverse (14011202011111), we get a palindrome (25122222222152).

The spelling of 11111020211041 in words is "eleven trillion, one hundred eleven billion, twenty million, two hundred eleven thousand, forty-one".