12321020200 has 24 divisors (see below), whose sum is σ = 28646372430. Its totient is φ = 4928408000.

The previous prime is 12321020171. The next prime is 12321020251. The reversal of 12321020200 is 202012321.

It can be written as a sum of positive squares in 3 ways, for example, as 7788768516 + 4532251684 = 88254^2 + 67322^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30802351 + ... + 30802750.

Almost surely, 2^12321020200 is an apocalyptic number.

12321020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321020200 is an abundant number, since it is smaller than the sum of its proper divisors (16325352230).

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

12321020200 is a wasteful number, since it uses less digits than its factorization.

12321020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61605117 (or 61605108 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12321020200 its reverse (202012321), we get a palindrome (12523032521).

The spelling of 12321020200 in words is "twelve billion, three hundred twenty-one million, twenty thousand, two hundred".