11033232521 has 2 divisors, whose sum is σ = 11033232522. Its totient is φ = 11033232520.

The previous prime is 11033232491. The next prime is 11033232523. The reversal of 11033232521 is 12523233011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7993254025 + 3039978496 = 89405^2 + 55136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11033232521 is a prime.

Together with 11033232523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11033232523) 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, 5516616260 + 5516616261.

It is an arithmetic number, because the mean of its divisors is an integer number (5516616261).

Almost surely, 2^11033232521 is an apocalyptic number.

It is an amenable number.

11033232521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11033232521 is an equidigital number, since it uses as much as digits as its factorization.

11033232521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 11033232521 its reverse (12523233011), we get a palindrome (23556465532).

The spelling of 11033232521 in words is "eleven billion, thirty-three million, two hundred thirty-two thousand, five hundred twenty-one".