1121317 has 2 divisors, whose sum is σ = 1121318. Its totient is φ = 1121316.

The previous prime is 1121297. The next prime is 1121333. The reversal of 1121317 is 7131211.

It is an a-pointer prime, because the next prime (1121333) can be obtained adding 1121317 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1083681 + 37636 = 1041^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121317 - 2⁷ = 1121189 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560658 + 560659.

It is an arithmetic number, because the mean of its divisors is an integer number (560659).

2^1121317 is an apocalyptic number.

It is an amenable number.

1121317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121317 is an equidigital number, since it uses as much as digits as its factorization.

1121317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42, while the sum is 16.

The square root of 1121317 is about 1058.9225656298. The cubic root of 1121317 is about 103.8905715372.

Adding to 1121317 its reverse (7131211), we get a palindrome (8252528).

The spelling of 1121317 in words is "one million, one hundred twenty-one thousand, three hundred seventeen".