12103340140 has 72 divisors (see below), whose sum is σ = 26935842528. Its totient is φ = 4567115520.

The previous prime is 12103340131. The next prime is 12103340141. The reversal of 12103340140 is 4104330121.

It is not an unprimeable number, because it can be changed into a prime (12103340141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 764505 + ... + 780175.

It is an arithmetic number, because the mean of its divisors is an integer number (374108924).

Almost surely, 2^12103340140 is an apocalyptic number.

12103340140 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 12103340140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13467921264).

12103340140 is an abundant number, since it is smaller than the sum of its proper divisors (14832502388).

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

12103340140 is a wasteful number, since it uses less digits than its factorization.

12103340140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15799 (or 15774 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12103340140 its reverse (4104330121), we get a palindrome (16207670261).

The spelling of 12103340140 in words is "twelve billion, one hundred three million, three hundred forty thousand, one hundred forty".