11031120012 has 48 divisors (see below), whose sum is σ = 28087847424. Its totient is φ = 3341736000.

The previous prime is 11031119993. The next prime is 11031120019. The reversal of 11031120012 is 21002113011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11031120012.

It is not an unprimeable number, because it can be changed into a prime (11031120019) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 493437 + ... + 515307.

It is an arithmetic number, because the mean of its divisors is an integer number (585163488).

Almost surely, 2^11031120012 is an apocalyptic number.

11031120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11031120012 is an abundant number, since it is smaller than the sum of its proper divisors (17056727412).

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

11031120012 is a wasteful number, since it uses less digits than its factorization.

11031120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25710 (or 25708 counting only the distinct ones).

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

Adding to 11031120012 its reverse (21002113011), we get a palindrome (32033233023).

The spelling of 11031120012 in words is "eleven billion, thirty-one million, one hundred twenty thousand, twelve".