12103404100 has 36 divisors (see below), whose sum is σ = 26440690500. Its totient is φ = 4808863360.

The previous prime is 12103404091. The next prime is 12103404101. The reversal of 12103404100 is 140430121.

It can be written as a sum of positive squares in 6 ways, for example, as 2745550404 + 9357853696 = 52398^2 + 96736^2 .

It is not an unprimeable number, because it can be changed into a prime (12103404101) 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, 391255 + ... + 421054.

It is an arithmetic number, because the mean of its divisors is an integer number (734463625).

Almost surely, 2^12103404100 is an apocalyptic number.

12103404100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103404100 is an abundant number, since it is smaller than the sum of its proper divisors (14337286400).

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

12103404100 is a wasteful number, since it uses less digits than its factorization.

12103404100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812472 (or 812465 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12103404100 its reverse (140430121), we get a palindrome (12243834221).

The spelling of 12103404100 in words is "twelve billion, one hundred three million, four hundred four thousand, one hundred".