12103231110100 has 72 divisors (see below), whose sum is σ = 29259641559960. Its totient is φ = 4314785825280.

The previous prime is 12103231110097. The next prime is 12103231110107. The reversal of 12103231110100 is 101113230121.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 7327004440336 + 4776226669764 = 2706844^2 + 2185458^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103231110107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160482607 + ... + 160558006.

It is an arithmetic number, because the mean of its divisors is an integer number (406383910555).

Almost surely, 2^{12103231110100} is an apocalyptic number.

12103231110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103231110100 is an abundant number, since it is smaller than the sum of its proper divisors (17156410449860).

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

12103231110100 is a wasteful number, since it uses less digits than its factorization.

12103231110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321040669 (or 321040662 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12103231110100 its reverse (101113230121), we get a palindrome (12204344340221).

The spelling of 12103231110100 in words is "twelve trillion, one hundred three billion, two hundred thirty-one million, one hundred ten thousand, one hundred".