12103032100 has 36 divisors (see below), whose sum is σ = 26455314564. Its totient is φ = 4805870080.

The previous prime is 12103032089. The next prime is 12103032103. The reversal of 12103032100 is 123030121.

It can be written as a sum of positive squares in 6 ways, for example, as 2500600036 + 9602432064 = 50006^2 + 97992^2 .

It is not an unprimeable number, because it can be changed into a prime (12103032103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428017 + ... + 455416.

It is an arithmetic number, because the mean of its divisors is an integer number (734869849).

Almost surely, 2^12103032100 is an apocalyptic number.

12103032100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103032100 is an abundant number, since it is smaller than the sum of its proper divisors (14352282464).

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

12103032100 is a wasteful number, since it uses less digits than its factorization.

12103032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883584 (or 883577 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12103032100 its reverse (123030121), we get a palindrome (12226062221).

The spelling of 12103032100 in words is "twelve billion, one hundred three million, thirty-two thousand, one hundred".