11023323012 has 108 divisors (see below), whose sum is σ = 30321110820. Its totient is φ = 3356755200.

The previous prime is 11023323011. The next prime is 11023323037. The reversal of 11023323012 is 21032332011.

It can be written as a sum of positive squares in 6 ways, for example, as 3248316036 + 7775006976 = 56994^2 + 88176^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11023323011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4772914 + ... + 4775222.

Almost surely, 2^11023323012 is an apocalyptic number.

11023323012 is a gapful number since it is divisible by the number (12) 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 11023323012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15160555410).

11023323012 is an abundant number, since it is smaller than the sum of its proper divisors (19297787808).

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

11023323012 is a wasteful number, since it uses less digits than its factorization.

11023323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534 (or 2428 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11023323012 its reverse (21032332011), we get a palindrome (32055655023).

The spelling of 11023323012 in words is "eleven billion, twenty-three million, three hundred twenty-three thousand, twelve".