11211113125111 has 2 divisors, whose sum is σ = 11211113125112. Its totient is φ = 11211113125110.

The previous prime is 11211113125063. The next prime is 11211113125171. The reversal of 11211113125111 is 11152131111211.

11211113125111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a m-pointer prime, because the next prime (11211113125171) can be obtained adding 11211113125111 to its product of digits (60).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11211113125111 - 2⁹ = 11211113124599 is a prime.

It is a super-2 number, since 2×11211113125111² (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 (11211113125171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605556562555 + 5605556562556.

It is an arithmetic number, because the mean of its divisors is an integer number (5605556562556).

Almost surely, 2^{11211113125111} is an apocalyptic number.

11211113125111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211113125111 is an equidigital number, since it uses as much as digits as its factorization.

11211113125111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60, while the sum is 22.

Adding to 11211113125111 its reverse (11152131111211), we get a palindrome (22363244236322).

The spelling of 11211113125111 in words is "eleven trillion, two hundred eleven billion, one hundred thirteen million, one hundred twenty-five thousand, one hundred eleven".