11023211320 has 96 divisors (see below), whose sum is σ = 27414747360. Its totient is φ = 3985977600.

The previous prime is 11023211279. The next prime is 11023211321. The reversal of 11023211320 is 2311232011.

It is a super-2 number, since 2×11023211320² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11023211294 and 11023211303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023211321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 869749 + ... + 882331.

It is an arithmetic number, because the mean of its divisors is an integer number (285570285).

Almost surely, 2^11023211320 is an apocalyptic number.

11023211320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11023211320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13707373680).

11023211320 is an abundant number, since it is smaller than the sum of its proper divisors (16391536040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11023211320 is a wasteful number, since it uses less digits than its factorization.

11023211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12797 (or 12782 counting only the distinct ones).

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

Adding to 11023211320 its reverse (2311232011), we get a palindrome (13334443331).

The spelling of 11023211320 in words is "eleven billion, twenty-three million, two hundred eleven thousand, three hundred twenty".