12321223031100 has 36 divisors (see below), whose sum is σ = 35649405304184. Its totient is φ = 3285659474880.

The previous prime is 12321223031083. The next prime is 12321223031101. The reversal of 12321223031100 is 113032212321.

12321223031100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321223031101) 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, 20535371419 + ... + 20535372018.

Almost surely, 2^{12321223031100} is an apocalyptic number.

12321223031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321223031100 is an abundant number, since it is smaller than the sum of its proper divisors (23328182273084).

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

12321223031100 is a wasteful number, since it uses less digits than its factorization.

12321223031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41070743454 (or 41070743447 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12321223031100 its reverse (113032212321), we get a palindrome (12434255243421).

The spelling of 12321223031100 in words is "twelve trillion, three hundred twenty-one billion, two hundred twenty-three million, thirty-one thousand, one hundred".