11420043120 has 160 divisors (see below), whose sum is σ = 39510685440. Its totient is φ = 3031799040.

The previous prime is 11420043109. The next prime is 11420043121. The reversal of 11420043120 is 2134002411.

11420043120 is a `hidden beast` number, since 1 + 14 + 200 + 431 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 11420043093 and 11420043102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420043121) 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 31 ways as a sum of consecutive naturals, for example, 478675 + ... + 501965.

It is an arithmetic number, because the mean of its divisors is an integer number (246941784).

Almost surely, 2^11420043120 is an apocalyptic number.

11420043120 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 11420043120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19755342720).

11420043120 is an abundant number, since it is smaller than the sum of its proper divisors (28090642320).

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

11420043120 is a wasteful number, since it uses less digits than its factorization.

11420043120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23540 (or 23528 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11420043120 its reverse (2134002411), we get a palindrome (13554045531).

The spelling of 11420043120 in words is "eleven billion, four hundred twenty million, forty-three thousand, one hundred twenty".