11289732012 has 108 divisors (see below), whose sum is σ = 31029335064. Its totient is φ = 3459456000.

The previous prime is 11289731963. The next prime is 11289732031. The reversal of 11289732012 is 21023798211.

11289732012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 1523388 + ... + 1530780.

It is an arithmetic number, because the mean of its divisors is an integer number (287308658).

Almost surely, 2^11289732012 is an apocalyptic number.

11289732012 is a gapful number since it is divisible by the number (12) 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 11289732012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15514667532).

11289732012 is an abundant number, since it is smaller than the sum of its proper divisors (19739603052).

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

11289732012 is a wasteful number, since it uses less digits than its factorization.

11289732012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680 (or 7662 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 11289732012 in words is "eleven billion, two hundred eighty-nine million, seven hundred thirty-two thousand, twelve".