11065336021 has 4 divisors (see below), whose sum is σ = 11138616544. Its totient is φ = 10992055500.

The previous prime is 11065335997. The next prime is 11065336027. The reversal of 11065336021 is 12063356011.

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 not a de Polignac number, because 11065336021 - 2⁹ = 11065335509 is a prime.

It is a super-4 number, since 4×11065336021⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11065336027) 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, 36640035 + ... + 36640336.

It is an arithmetic number, because the mean of its divisors is an integer number (2784654136).

Almost surely, 2^11065336021 is an apocalyptic number.

It is an amenable number.

11065336021 is a deficient number, since it is larger than the sum of its proper divisors (73280523).

11065336021 is an equidigital number, since it uses as much as digits as its factorization.

11065336021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73280522.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 11065336021 in words is "eleven billion, sixty-five million, three hundred thirty-six thousand, twenty-one".