11000020120 has 16 divisors (see below), whose sum is σ = 24750045360. Its totient is φ = 4400008032.

The previous prime is 11000020081. The next prime is 11000020123. The reversal of 11000020120 is 2102000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000020123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137500212 + ... + 137500291.

It is an arithmetic number, because the mean of its divisors is an integer number (1546877835).

Almost surely, 2^11000020120 is an apocalyptic number.

11000020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000020120 is an abundant number, since it is smaller than the sum of its proper divisors (13750025240).

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

11000020120 is a wasteful number, since it uses less digits than its factorization.

11000020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275000514 (or 275000510 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 11000020120 its reverse (2102000011), we get a palindrome (13102020131).

The spelling of 11000020120 in words is "eleven billion, twenty thousand, one hundred twenty".