11103011221111 has 2 divisors, whose sum is σ = 11103011221112. Its totient is φ = 11103011221110.

The previous prime is 11103011221067. The next prime is 11103011221151. The reversal of 11103011221111 is 11112211030111.

11103011221111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (11112211030111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11103011221111 - 2²⁹ = 11102474350199 is a prime.

It is a super-2 number, since 2×11103011221111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11103011221151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551505610555 + 5551505610556.

It is an arithmetic number, because the mean of its divisors is an integer number (5551505610556).

Almost surely, 2^{11103011221111} is an apocalyptic number.

11103011221111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11103011221111 is an equidigital number, since it uses as much as digits as its factorization.

11103011221111 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 16.

Adding to 11103011221111 its reverse (11112211030111), we get a palindrome (22215222251222).

The spelling of 11103011221111 in words is "eleven trillion, one hundred three billion, eleven million, two hundred twenty-one thousand, one hundred eleven".