12321013100 has 36 divisors (see below), whose sum is σ = 29167200888. Its totient is φ = 4480368000.

The previous prime is 12321013093. The next prime is 12321013121. The reversal of 12321013100 is 131012321.

It is a super-2 number, since 2×12321013100² (a number of 21 digits) contains 22 as substring.

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, 5599361 + ... + 5601560.

Almost surely, 2^12321013100 is an apocalyptic number.

12321013100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321013100 is an abundant number, since it is smaller than the sum of its proper divisors (16846187788).

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

12321013100 is a wasteful number, since it uses less digits than its factorization.

12321013100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11200946 (or 11200939 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12321013100 its reverse (131012321), we get a palindrome (12452025421).

The spelling of 12321013100 in words is "twelve billion, three hundred twenty-one million, thirteen thousand, one hundred".