11031200012 has 12 divisors (see below), whose sum is σ = 22062400080. Its totient is φ = 4727657136.

The previous prime is 11031200009. The next prime is 11031200021. The reversal of 11031200012 is 21000213011.

11031200012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 11031199966 and 11031200002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196985687 + ... + 196985742.

It is an arithmetic number, because the mean of its divisors is an integer number (1838533340).

Almost surely, 2^11031200012 is an apocalyptic number.

It is an amenable number.

11031200012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11031200012 is a wasteful number, since it uses less digits than its factorization.

11031200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393971440 (or 393971438 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11031200012 its reverse (21000213011), we get a palindrome (32031413023).

The spelling of 11031200012 in words is "eleven billion, thirty-one million, two hundred thousand, twelve".