12141232140 has 96 divisors (see below), whose sum is σ = 34680248064. Its totient is φ = 3172942080.

The previous prime is 12141232121. The next prime is 12141232141. The reversal of 12141232140 is 4123214121.

It is not an unprimeable number, because it can be changed into a prime (12141232141) 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, 784275 + ... + 799605.

It is an arithmetic number, because the mean of its divisors is an integer number (361252584).

Almost surely, 2^12141232140 is an apocalyptic number.

12141232140 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 12141232140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17340124032).

12141232140 is an abundant number, since it is smaller than the sum of its proper divisors (22539015924).

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

12141232140 is a wasteful number, since it uses less digits than its factorization.

12141232140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15607 (or 15605 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12141232140 its reverse (4123214121), we get a palindrome (16264446261).

The spelling of 12141232140 in words is "twelve billion, one hundred forty-one million, two hundred thirty-two thousand, one hundred forty".