11023524221 has 4 divisors (see below), whose sum is σ = 11130548832. Its totient is φ = 10916499612.

The previous prime is 11023524191. The next prime is 11023524223. The reversal of 11023524221 is 12242532011.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11023524221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023524223) 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, 53512151 + ... + 53512356.

It is an arithmetic number, because the mean of its divisors is an integer number (2782637208).

Almost surely, 2^11023524221 is an apocalyptic number.

It is an amenable number.

11023524221 is a deficient number, since it is larger than the sum of its proper divisors (107024611).

11023524221 is a wasteful number, since it uses less digits than its factorization.

11023524221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107024610.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 11023524221 in words is "eleven billion, twenty-three million, five hundred twenty-four thousand, two hundred twenty-one".