11324981 has 2 divisors, whose sum is σ = 11324982. Its totient is φ = 11324980.

The previous prime is 11324959. The next prime is 11325011. The reversal of 11324981 is 18942311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10923025 + 401956 = 3305^2 + 634^2 .

It is an emirp because it is prime and its reverse (18942311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11324981 - 2¹⁴ = 11308597 is a prime.

It is a super-2 number, since 2×11324981² = 256510389300722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11324921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5662490 + 5662491.

It is an arithmetic number, because the mean of its divisors is an integer number (5662491).

Almost surely, 2^11324981 is an apocalyptic number.

It is an amenable number.

11324981 is a deficient number, since it is larger than the sum of its proper divisors (1).

11324981 is an equidigital number, since it uses as much as digits as its factorization.

11324981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 29.

The square root of 11324981 is about 3365.2609111330. The cubic root of 11324981 is about 224.5669431632.

The spelling of 11324981 in words is "eleven million, three hundred twenty-four thousand, nine hundred eighty-one".