11023311321 has 48 divisors (see below), whose sum is σ = 17914985088. Its totient is φ = 6472742400.

The previous prime is 11023311319. The next prime is 11023311347. The reversal of 11023311321 is 12311332011.

11023311321 is a `hidden beast` number, since 1 + 10 + 2 + 331 + 1 + 321 = 666.

It is not a de Polignac number, because 11023311321 - 2¹ = 11023311319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11023311294 and 11023311303.

It is not an unprimeable number, because it can be changed into a prime (11023311391) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 876540 + ... + 889026.

It is an arithmetic number, because the mean of its divisors is an integer number (373228856).

Almost surely, 2^11023311321 is an apocalyptic number.

11023311321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11023311321 is a deficient number, since it is larger than the sum of its proper divisors (6891673767).

11023311321 is a wasteful number, since it uses less digits than its factorization.

11023311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12782 (or 12779 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11023311321 its reverse (12311332011), we get a palindrome (23334643332).

The spelling of 11023311321 in words is "eleven billion, twenty-three million, three hundred eleven thousand, three hundred twenty-one".