11023216321 has 8 divisors (see below), whose sum is σ = 11957808744. Its totient is φ = 10101002880.

The previous prime is 11023216283. The next prime is 11023216349. The reversal of 11023216321 is 12361232011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 990990400 + 10032225921 = 31480^2 + 100161^2 .

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 11023216321 - 2¹⁵ = 11023183553 is a prime.

It is a super-2 number, since 2×11023216321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11023216292 and 11023216301.

It is not an unprimeable number, because it can be changed into a prime (11023216621) 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, 3092890 + ... + 3096451.

It is an arithmetic number, because the mean of its divisors is an integer number (1494726093).

Almost surely, 2^11023216321 is an apocalyptic number.

It is an amenable number.

11023216321 is a deficient number, since it is larger than the sum of its proper divisors (934592423).

11023216321 is a wasteful number, since it uses less digits than its factorization.

11023216321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6189491.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11023216321 its reverse (12361232011), we get a palindrome (23384448332).

The spelling of 11023216321 in words is "eleven billion, twenty-three million, two hundred sixteen thousand, three hundred twenty-one".