11121853 has 2 divisors, whose sum is σ = 11121854.
Its totient is φ = 11121852.
The previous prime is 11121841. The next prime is 11121863. The reversal of 11121853 is 35812111.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 11042329 + 79524 = 3323^2 + 282^2
It is a cyclic number.
It is not a de Polignac number, because 11121853 - 217 = 10990781 is a prime.
It is a super-2 number, since 2×111218532 = 247391228307218, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (11121823) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560926 + 5560927.
It is an arithmetic number, because the mean of its divisors is an integer number (5560927).
Almost surely, 211121853 is an apocalyptic number.
It is an amenable number.
11121853 is a deficient number, since it is larger than the sum of its proper divisors (1).
11121853 is an equidigital number, since it uses as much as digits as its factorization.
11121853 is an evil number, because the sum of its binary digits is even.
The product of its digits is 240, while the sum is 22.
The square root of 11121853 is about 3334.9442274197.
The cubic root of 11121853 is about 223.2162032768.
Adding to 11121853 its reverse (35812111), we get a palindrome (46933964).
The spelling of 11121853 in words is "eleven million, one hundred twenty-one thousand, eight hundred fifty-three".