11121021011011 has 2 divisors, whose sum is σ = 11121021011012. Its totient is φ = 11121021011010.

The previous prime is 11121021010903. The next prime is 11121021011041. The reversal of 11121021011011 is 11011012012111.

It is a strong prime.

It is an emirp because it is prime and its reverse (11011012012111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121021011011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121021010982 and 11121021011000.

It is not a weakly prime, because it can be changed into another prime (11121021011041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560510505505 + 5560510505506.

It is an arithmetic number, because the mean of its divisors is an integer number (5560510505506).

Almost surely, 2^{11121021011011} is an apocalyptic number.

11121021011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121021011011 is an equidigital number, since it uses as much as digits as its factorization.

11121021011011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11121021011011 its reverse (11011012012111), we get a palindrome (22132033023122).

The spelling of 11121021011011 in words is "eleven trillion, one hundred twenty-one billion, twenty-one million, eleven thousand, eleven".