11987277120 has 672 divisors, whose sum is σ = 51763525632. Its totient is φ = 2478587904.

The previous prime is 11987277097. The next prime is 11987277121. The reversal of 11987277120 is 2177278911.

11987277120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11987277121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13889809 + ... + 13890671.

It is an arithmetic number, because the mean of its divisors is an integer number (77029056).

Almost surely, 2^11987277120 is an apocalyptic number.

11987277120 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 11987277120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25881762816).

11987277120 is an abundant number, since it is smaller than the sum of its proper divisors (39776248512).

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

11987277120 is a wasteful number, since it uses less digits than its factorization.

11987277120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 45.

The spelling of 11987277120 in words is "eleven billion, nine hundred eighty-seven million, two hundred seventy-seven thousand, one hundred twenty".