11383721 has 2 divisors, whose sum is σ = 11383722. Its totient is φ = 11383720.

The previous prime is 11383703. The next prime is 11383751. The reversal of 11383721 is 12738311.

11383721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10471696 + 912025 = 3236^2 + 955^2 .

It is an emirp because it is prime and its reverse (12738311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11383721 - 2⁶ = 11383657 is a prime.

It is not a weakly prime, because it can be changed into another prime (11383751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5691860 + 5691861.

It is an arithmetic number, because the mean of its divisors is an integer number (5691861).

Almost surely, 2^11383721 is an apocalyptic number.

It is an amenable number.

11383721 is a deficient number, since it is larger than the sum of its proper divisors (1).

11383721 is an equidigital number, since it uses as much as digits as its factorization.

11383721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 26.

The square root of 11383721 is about 3373.9770301530. The cubic root of 11383721 is about 224.9545323764.

The spelling of 11383721 in words is "eleven million, three hundred eighty-three thousand, seven hundred twenty-one".