11023021321 has 8 divisors (see below), whose sum is σ = 11877965064. Its totient is φ = 10169080320.

The previous prime is 11023021297. The next prime is 11023021327. The reversal of 11023021321 is 12312032011.

It can be written as a sum of positive squares in 4 ways, for example, as 6068410000 + 4954611321 = 77900^2 + 70389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11023021321 - 2¹⁹ = 11022497033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11023021295 and 11023021304.

It is not an unprimeable number, because it can be changed into a prime (11023021327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227770 + ... + 271891.

It is an arithmetic number, because the mean of its divisors is an integer number (1484745633).

Almost surely, 2^11023021321 is an apocalyptic number.

It is an amenable number.

11023021321 is a deficient number, since it is larger than the sum of its proper divisors (854943743).

11023021321 is a wasteful number, since it uses less digits than its factorization.

11023021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501371.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11023021321 its reverse (12312032011), we get a palindrome (23335053332).

The spelling of 11023021321 in words is "eleven billion, twenty-three million, twenty-one thousand, three hundred twenty-one".