12103210031100 has 36 divisors (see below), whose sum is σ = 35018621024184. Its totient is φ = 3227522674880.

The previous prime is 12103210031041. The next prime is 12103210031113. The reversal of 12103210031100 is 113001230121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12103210031100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20172016419 + ... + 20172017018.

It is an arithmetic number, because the mean of its divisors is an integer number (972739472894).

Almost surely, 2^{12103210031100} is an apocalyptic number.

12103210031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103210031100 is an abundant number, since it is smaller than the sum of its proper divisors (22915410993084).

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

12103210031100 is a wasteful number, since it uses less digits than its factorization.

12103210031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40344033454 (or 40344033447 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12103210031100 its reverse (113001230121), we get a palindrome (12216211261221).

The spelling of 12103210031100 in words is "twelve trillion, one hundred three billion, two hundred ten million, thirty-one thousand, one hundred".