11260021 has 2 divisors, whose sum is σ = 11260022. Its totient is φ = 11260020.

The previous prime is 11260019. The next prime is 11260049. The reversal of 11260021 is 12006211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10080625 + 1179396 = 3175^2 + 1086^2 .

It is a cyclic number.

It is not a de Polignac number, because 11260021 - 2¹ = 11260019 is a prime.

Together with 11260019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11259983 and 11260010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11260121) 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, 5630010 + 5630011.

It is an arithmetic number, because the mean of its divisors is an integer number (5630011).

Almost surely, 2^11260021 is an apocalyptic number.

It is an amenable number.

11260021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11260021 is an equidigital number, since it uses as much as digits as its factorization.

11260021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 11260021 is about 3355.5954762158. The cubic root of 11260021 is about 224.1367481864.

Adding to 11260021 its reverse (12006211), we get a palindrome (23266232).

The spelling of 11260021 in words is "eleven million, two hundred sixty thousand, twenty-one".