12003323100 has 36 divisors (see below), whose sum is σ = 34729615704. Its totient is φ = 3200886080.

The previous prime is 12003323071. The next prime is 12003323117. The reversal of 12003323100 is 132330021.

It is a super-2 number, since 2×12003323100² (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 12003323100.

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, 20005239 + ... + 20005838.

Almost surely, 2^12003323100 is an apocalyptic number.

12003323100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12003323100 is an abundant number, since it is smaller than the sum of its proper divisors (22726292604).

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

12003323100 is a wasteful number, since it uses less digits than its factorization.

12003323100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40011094 (or 40011087 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 12003323100 its reverse (132330021), we get a palindrome (12135653121).

The spelling of 12003323100 in words is "twelve billion, three million, three hundred twenty-three thousand, one hundred".