11524021 has 2 divisors, whose sum is σ = 11524022. Its totient is φ = 11524020.

The previous prime is 11524003. The next prime is 11524061. The reversal of 11524021 is 12042511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10176100 + 1347921 = 3190^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 11524021 - 2¹⁹ = 10999733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11523986 and 11524004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11524061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5762010 + 5762011.

It is an arithmetic number, because the mean of its divisors is an integer number (5762011).

Almost surely, 2^11524021 is an apocalyptic number.

It is an amenable number.

11524021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11524021 is an equidigital number, since it uses as much as digits as its factorization.

11524021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 11524021 is about 3394.7048472584. The cubic root of 11524021 is about 225.8749209989.

Adding to 11524021 its reverse (12042511), we get a palindrome (23566532).

The spelling of 11524021 in words is "eleven million, five hundred twenty-four thousand, twenty-one".