11322521 has 4 divisors (see below), whose sum is σ = 12940032. Its totient is φ = 9705012.

The previous prime is 11322511. The next prime is 11322529. The reversal of 11322521 is 12522311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12522311 = 19 ⋅659069.

It is a cyclic number.

It is not a de Polignac number, because 11322521 - 2¹⁴ = 11306137 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11322521.

It is not an unprimeable number, because it can be changed into a prime (11322529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808745 + ... + 808758.

It is an arithmetic number, because the mean of its divisors is an integer number (3235008).

Almost surely, 2^11322521 is an apocalyptic number.

It is an amenable number.

11322521 is a deficient number, since it is larger than the sum of its proper divisors (1617511).

11322521 is an equidigital number, since it uses as much as digits as its factorization.

11322521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617510.

The product of its digits is 120, while the sum is 17.

The square root of 11322521 is about 3364.8953921333. The cubic root of 11322521 is about 224.5506819237.

Adding to 11322521 its reverse (12522311), we get a palindrome (23844832).

The spelling of 11322521 in words is "eleven million, three hundred twenty-two thousand, five hundred twenty-one".