12103659900 has 126 divisors (see below), whose sum is σ = 39379635792. Its totient is φ = 3227623200.

The previous prime is 12103659839. The next prime is 12103659901. The reversal of 12103659900 is 995630121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103659901) by changing a digit.

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 41 ways as a sum of consecutive naturals, for example, 10116 + ... + 155915.

It is an arithmetic number, because the mean of its divisors is an integer number (312536792).

Almost surely, 2^12103659900 is an apocalyptic number.

12103659900 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 12103659900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19689817896).

12103659900 is an abundant number, since it is smaller than the sum of its proper divisors (27275975892).

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

12103659900 is a wasteful number, since it uses less digits than its factorization.

12103659900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166063 (or 166041 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The spelling of 12103659900 in words is "twelve billion, one hundred three million, six hundred fifty-nine thousand, nine hundred".