11031333012 has 144 divisors (see below), whose sum is σ = 33136230400. Its totient is φ = 3027896640.

The previous prime is 11031332999. The next prime is 11031333013. The reversal of 11031333012 is 21033313011.

It is a happy number.

11031333012 is a `hidden beast` number, since 1 + 10 + 313 + 330 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031333013) 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, 1080789 + ... + 1090947.

Almost surely, 2^11031333012 is an apocalyptic number.

11031333012 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 11031333012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16568115200).

11031333012 is an abundant number, since it is smaller than the sum of its proper divisors (22104897388).

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

11031333012 is a wasteful number, since it uses less digits than its factorization.

11031333012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10346 (or 10341 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 11031333012 its reverse (21033313011), we get a palindrome (32064646023).

The spelling of 11031333012 in words is "eleven billion, thirty-one million, three hundred thirty-three thousand, twelve".