11031200120 has 64 divisors (see below), whose sum is σ = 26357940000. Its totient is φ = 4143218688.

The previous prime is 11031200069. The next prime is 11031200123. The reversal of 11031200120 is 2100213011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031200123) 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 15 ways as a sum of consecutive naturals, for example, 21656 + ... + 150104.

Almost surely, 2^11031200120 is an apocalyptic number.

11031200120 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 11031200120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13178970000).

11031200120 is an abundant number, since it is smaller than the sum of its proper divisors (15326739880).

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

11031200120 is a wasteful number, since it uses less digits than its factorization.

11031200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128592 (or 128588 counting only the distinct ones).

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

Adding to 11031200120 its reverse (2100213011), we get a palindrome (13131413131).

The spelling of 11031200120 in words is "eleven billion, thirty-one million, two hundred thousand, one hundred twenty".