12312003322200 has 48 divisors (see below), whose sum is σ = 38167210300680. Its totient is φ = 3283200885760.

The previous prime is 12312003322189. The next prime is 12312003322243. The reversal of 12312003322200 is 222330021321.

It is a happy number.

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, 10260002169 + ... + 10260003368.

Almost surely, 2^{12312003322200} is an apocalyptic number.

12312003322200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312003322200 is an abundant number, since it is smaller than the sum of its proper divisors (25855206978480).

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

12312003322200 is a wasteful number, since it uses less digits than its factorization.

12312003322200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20520005556 (or 20520005547 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12312003322200 its reverse (222330021321), we get a palindrome (12534333343521).

The spelling of 12312003322200 in words is "twelve trillion, three hundred twelve billion, three million, three hundred twenty-two thousand, two hundred".