12011321441240 has 128 divisors (see below), whose sum is σ = 30264514790400. Its totient is φ = 4253389470720.

The previous prime is 12011321441213. The next prime is 12011321441269. The reversal of 12011321441240 is 4214412311021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170699 + ... + 4904261.

It is an arithmetic number, because the mean of its divisors is an integer number (236441521800).

Almost surely, 2^{12011321441240} is an apocalyptic number.

12011321441240 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 12011321441240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15132257395200).

12011321441240 is an abundant number, since it is smaller than the sum of its proper divisors (18253193349160).

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

12011321441240 is a wasteful number, since it uses less digits than its factorization.

12011321441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733737 (or 4733733 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 12011321441240 its reverse (4214412311021), we get a palindrome (16225733752261).

The spelling of 12011321441240 in words is "twelve trillion, eleven billion, three hundred twenty-one million, four hundred forty-one thousand, two hundred forty".