12023213100 has 144 divisors (see below), whose sum is σ = 35777043456. Its totient is φ = 3115584000.

The previous prime is 12023213099. The next prime is 12023213171. The reversal of 12023213100 is 131232021.

It is a super-2 number, since 2×12023213100² (a number of 21 digits) contains 22 as substring.

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 12023213100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3331497 + ... + 3335103.

Almost surely, 2^12023213100 is an apocalyptic number.

12023213100 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 12023213100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17888521728).

12023213100 is an abundant number, since it is smaller than the sum of its proper divisors (23753830356).

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

12023213100 is a wasteful number, since it uses less digits than its factorization.

12023213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936 (or 3929 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12023213100 its reverse (131232021), we get a palindrome (12154445121).

The spelling of 12023213100 in words is "twelve billion, twenty-three million, two hundred thirteen thousand, one hundred".