11411021 has 2 divisors, whose sum is σ = 11411022. Its totient is φ = 11411020.

The previous prime is 11411011. The next prime is 11411027. The reversal of 11411021 is 12011411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 978121 = 3230^2 + 989^2 .

It is an emirp because it is prime and its reverse (12011411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11411021 - 2²² = 7216717 is a prime.

It is a super-2 number, since 2×11411021² = 260422800524882, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11410993 and 11411011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11411027) 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, 5705510 + 5705511.

It is an arithmetic number, because the mean of its divisors is an integer number (5705511).

Almost surely, 2^11411021 is an apocalyptic number.

It is an amenable number.

11411021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11411021 is an equidigital number, since it uses as much as digits as its factorization.

11411021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 11411021 is about 3378.0202782103. The cubic root of 11411021 is about 225.1342145741.

Adding to 11411021 its reverse (12011411), we get a palindrome (23422432).

The spelling of 11411021 in words is "eleven million, four hundred eleven thousand, twenty-one".