12331223100 has 216 divisors, whose sum is σ = 45367908768. Its totient is φ = 2742336000.

The previous prime is 12331223057. The next prime is 12331223123. The reversal of 12331223100 is 132213321.

12331223100 is a `hidden beast` number, since 1 + 2 + 331 + 22 + 310 + 0 = 666.

It is a super-2 number, since 2×12331223100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 206650 + ... + 259550.

Almost surely, 2^12331223100 is an apocalyptic number.

12331223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12331223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22683954384).

12331223100 is an abundant number, since it is smaller than the sum of its proper divisors (33036685668).

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

12331223100 is a wasteful number, since it uses less digits than its factorization.

12331223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52965 (or 52955 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12331223100 its reverse (132213321), we get a palindrome (12463436421).

The spelling of 12331223100 in words is "twelve billion, three hundred thirty-one million, two hundred twenty-three thousand, one hundred".