12103012340 has 12 divisors (see below), whose sum is σ = 25416325956. Its totient is φ = 4841204928.

The previous prime is 12103012307. The next prime is 12103012381. The reversal of 12103012340 is 4321030121.

It can be written as a sum of positive squares in 2 ways, for example, as 4896360676 + 7206651664 = 69974^2 + 84892^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302575289 + ... + 302575328.

It is an arithmetic number, because the mean of its divisors is an integer number (2118027163).

Almost surely, 2^12103012340 is an apocalyptic number.

12103012340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103012340 is an abundant number, since it is smaller than the sum of its proper divisors (13313313616).

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

12103012340 is a wasteful number, since it uses less digits than its factorization.

12103012340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605150626 (or 605150624 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12103012340 its reverse (4321030121), we get a palindrome (16424042461).

The spelling of 12103012340 in words is "twelve billion, one hundred three million, twelve thousand, three hundred forty".