11322065521 has 4 divisors (see below), whose sum is σ = 12192993652. Its totient is φ = 10451137392.

The previous prime is 11322065483. The next prime is 11322065539. The reversal of 11322065521 is 12556022311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5627250225 + 5694815296 = 75015^2 + 75464^2 .

It is a cyclic number.

It is not a de Polignac number, because 11322065521 - 2⁷ = 11322065393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11322065521.

It is not an unprimeable number, because it can be changed into a prime (11322065561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435464046 + ... + 435464071.

It is an arithmetic number, because the mean of its divisors is an integer number (3048248413).

Almost surely, 2^11322065521 is an apocalyptic number.

It is an amenable number.

11322065521 is a deficient number, since it is larger than the sum of its proper divisors (870928131).

11322065521 is an equidigital number, since it uses as much as digits as its factorization.

11322065521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870928130.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 11322065521 its reverse (12556022311), we get a palindrome (23878087832).

The spelling of 11322065521 in words is "eleven billion, three hundred twenty-two million, sixty-five thousand, five hundred twenty-one".