11321917 has 2 divisors, whose sum is σ = 11321918. Its totient is φ = 11321916.

The previous prime is 11321903. The next prime is 11321927. The reversal of 11321917 is 71912311.

11321917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7365796 + 3956121 = 2714^2 + 1989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11321917 is a prime.

It is equal to p₇₄₆₃₅₀ and since 11321917 and 746350 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11321891 and 11321900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660958 + 5660959.

It is an arithmetic number, because the mean of its divisors is an integer number (5660959).

Almost surely, 2^11321917 is an apocalyptic number.

It is an amenable number.

11321917 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321917 is an equidigital number, since it uses as much as digits as its factorization.

11321917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378, while the sum is 25.

The square root of 11321917 is about 3364.8056407466. The cubic root of 11321917 is about 224.5466889666.

The spelling of 11321917 in words is "eleven million, three hundred twenty-one thousand, nine hundred seventeen".