11121417 has 12 divisors (see below), whose sum is σ = 17009460. Its totient is φ = 6978048.

The previous prime is 11121389. The next prime is 11121421. The reversal of 11121417 is 71412111.

It can be written as a sum of positive squares in 2 ways, for example, as 4511376 + 6610041 = 2124^2 + 2571^2 .

It is not a de Polignac number, because 11121417 - 2⁶ = 11121353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11121417.

It is not an unprimeable number, because it can be changed into a prime (11121437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36192 + ... + 36497.

It is an arithmetic number, because the mean of its divisors is an integer number (1417455).

Almost surely, 2^11121417 is an apocalyptic number.

11121417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11121417 is a deficient number, since it is larger than the sum of its proper divisors (5888043).

11121417 is a wasteful number, since it uses less digits than its factorization.

11121417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72712 (or 72709 counting only the distinct ones).

The product of its digits is 56, while the sum is 18.

The square root of 11121417 is about 3334.8788583695. The cubic root of 11121417 is about 223.2132863906.

Adding to 11121417 its reverse (71412111), we get a palindrome (82533528).

It can be divided in two parts, 111 and 21417, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 11121417 in words is "eleven million, one hundred twenty-one thousand, four hundred seventeen".