11021324309 has 4 divisors (see below), whose sum is σ = 11021575116. Its totient is φ = 11021073504.

The previous prime is 11021324297. The next prime is 11021324339. The reversal of 11021324309 is 90342312011.

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 10044449284 + 976875025 = 100222^2 + 31255^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021324309 - 2¹² = 11021320213 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 (11021324339) 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, 40184 + ... + 153809.

It is an arithmetic number, because the mean of its divisors is an integer number (2755393779).

Almost surely, 2^11021324309 is an apocalyptic number.

It is an amenable number.

11021324309 is a deficient number, since it is larger than the sum of its proper divisors (250807).

11021324309 is an equidigital number, since it uses as much as digits as its factorization.

11021324309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250806.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 11021324309 in words is "eleven billion, twenty-one million, three hundred twenty-four thousand, three hundred nine".